id	sid	tid	token	lemma	pos
ajst-5638	1	1	academic	academic	ADJ
ajst-5638	1	2	journal	journal	NOUN
ajst-5638	1	3	of	of	ADP
ajst-5638	1	4	science	science	NOUN
ajst-5638	1	5	and	and	CCONJ
ajst-5638	1	6	technology	technology	NOUN
ajst-5638	1	7	issn	issn	NOUN
ajst-5638	1	8	:	:	PUNCT
ajst-5638	1	9	2771	2771	NUM
ajst-5638	1	10	-	-	SYM
ajst-5638	1	11	3032	3032	NUM
ajst-5638	1	12	|	|	NOUN
ajst-5638	1	13	vol	vol	NOUN
ajst-5638	1	14	.	.	PROPN
ajst-5638	2	1	5	5	NUM
ajst-5638	2	2	,	,	PUNCT
ajst-5638	2	3	no	no	INTJ
ajst-5638	2	4	.	.	NOUN
ajst-5638	2	5	1	1	NUM
ajst-5638	2	6	,	,	PUNCT
ajst-5638	2	7	2023	2023	NUM
ajst-5638	2	8	229	229	NUM
ajst-5638	2	9	study	study	NOUN
ajst-5638	2	10	on	on	ADP
ajst-5638	2	11	hardness	hardness	ADJ
ajst-5638	2	12	control	control	NOUN
ajst-5638	2	13	of	of	ADP
ajst-5638	2	14	ir‐c‐n	ir‐c‐n	NOUN
ajst-5638	2	15	system	system	NOUN
ajst-5638	2	16	mingze	mingze	ADJ
ajst-5638	2	17	song1	song1	NOUN
ajst-5638	2	18	,	,	PUNCT
ajst-5638	2	19	2	2	NUM
ajst-5638	2	20	,	,	PUNCT
ajst-5638	2	21	feng	feng	PROPN
ajst-5638	2	22	miao1	miao1	PROPN
ajst-5638	2	23	,	,	PUNCT
ajst-5638	2	24	2	2	NUM
ajst-5638	2	25	,	,	PUNCT
ajst-5638	2	26	*	*	PROPN
ajst-5638	2	27	,	,	PUNCT
ajst-5638	2	28	yi	yi	PROPN
ajst-5638	2	29	huang1	huang1	PROPN
ajst-5638	2	30	,	,	PUNCT
ajst-5638	2	31	2	2	NUM
ajst-5638	2	32	,	,	PUNCT
ajst-5638	2	33	min	min	NOUN
ajst-5638	2	34	xu1	xu1	PROPN
ajst-5638	2	35	,	,	PUNCT
ajst-5638	2	36	2	2	NUM
ajst-5638	2	37	,	,	PUNCT
ajst-5638	2	38	feiran	feiran	ADJ
ajst-5638	2	39	deng1	deng1	NOUN
ajst-5638	2	40	,	,	PUNCT
ajst-5638	2	41	chenda	chenda	PROPN
ajst-5638	2	42	xiao1	xiao1	PROPN
ajst-5638	3	1	1school	1school	NUM
ajst-5638	3	2	of	of	ADP
ajst-5638	3	3	electronic	electronic	ADJ
ajst-5638	3	4	information	information	NOUN
ajst-5638	3	5	,	,	PUNCT
ajst-5638	3	6	southwest	southwest	PROPN
ajst-5638	3	7	minzu	minzu	PROPN
ajst-5638	3	8	university	university	PROPN
ajst-5638	3	9	,	,	PUNCT
ajst-5638	3	10	chengdu	chengdu	PROPN
ajst-5638	3	11	610041	610041	NUM
ajst-5638	3	12	,	,	PUNCT
ajst-5638	3	13	china	china	PROPN
ajst-5638	3	14	2key	2key	NUM
ajst-5638	3	15	laboratory	laboratory	NOUN
ajst-5638	3	16	of	of	ADP
ajst-5638	3	17	state	state	NOUN
ajst-5638	3	18	ethnic	ethnic	PROPN
ajst-5638	3	19	affairs	affair	NOUN
ajst-5638	3	20	commission	commission	NOUN
ajst-5638	3	21	for	for	ADP
ajst-5638	3	22	electronic	electronic	ADJ
ajst-5638	3	23	and	and	CCONJ
ajst-5638	3	24	information	information	NOUN
ajst-5638	3	25	engineering	engineering	NOUN
ajst-5638	3	26	,	,	PUNCT
ajst-5638	3	27	southwest	southwest	PROPN
ajst-5638	3	28	minzu	minzu	PROPN
ajst-5638	3	29	university	university	PROPN
ajst-5638	3	30	,	,	PUNCT
ajst-5638	3	31	chengdu	chengdu	PROPN
ajst-5638	3	32	610041	610041	NUM
ajst-5638	3	33	,	,	PUNCT
ajst-5638	3	34	china	china	PROPN
ajst-5638	3	35	abstract	abstract	NOUN
ajst-5638	3	36	:	:	PUNCT
ajst-5638	3	37	in	in	ADP
ajst-5638	3	38	this	this	DET
ajst-5638	3	39	paper	paper	NOUN
ajst-5638	3	40	,	,	PUNCT
ajst-5638	3	41	based	base	VERB
ajst-5638	3	42	on	on	ADP
ajst-5638	3	43	first	first	ADJ
ajst-5638	3	44	-	-	PUNCT
ajst-5638	3	45	principles	principle	NOUN
ajst-5638	3	46	theoretical	theoretical	ADJ
ajst-5638	3	47	calculation	calculation	NOUN
ajst-5638	3	48	and	and	CCONJ
ajst-5638	3	49	vesta	vesta	PROPN
ajst-5638	3	50	modeling	modeling	NOUN
ajst-5638	3	51	,	,	PUNCT
ajst-5638	3	52	nitrogen	nitrogen	NOUN
ajst-5638	3	53	atoms	atom	NOUN
ajst-5638	3	54	were	be	AUX
ajst-5638	3	55	doped	dope	VERB
ajst-5638	3	56	in	in	ADP
ajst-5638	3	57	the	the	DET
ajst-5638	3	58	ir	ir	NOUN
ajst-5638	3	59	-	-	PROPN
ajst-5638	3	60	c	c	PROPN
ajst-5638	3	61	of	of	ADP
ajst-5638	3	62	pnma	pnma	NOUN
ajst-5638	3	63	phase	phase	NOUN
ajst-5638	3	64	and	and	CCONJ
ajst-5638	3	65	carbon	carbon	NOUN
ajst-5638	3	66	atoms	atom	NOUN
ajst-5638	3	67	were	be	AUX
ajst-5638	3	68	doped	dope	VERB
ajst-5638	3	69	in	in	ADP
ajst-5638	3	70	the	the	DET
ajst-5638	3	71	ir	ir	NOUN
ajst-5638	3	72	-	-	NOUN
ajst-5638	3	73	n	n	NOUN
ajst-5638	3	74	of	of	ADP
ajst-5638	3	75	pnnm	pnnm	ADJ
ajst-5638	3	76	phase	phase	NOUN
ajst-5638	3	77	to	to	PART
ajst-5638	3	78	obtain	obtain	VERB
ajst-5638	3	79	a	a	DET
ajst-5638	3	80	new	new	ADJ
ajst-5638	3	81	ir	ir	VERB
ajst-5638	3	82	-	-	PUNCT
ajst-5638	3	83	c	c	NOUN
ajst-5638	3	84	-	-	PUNCT
ajst-5638	3	85	n	n	CCONJ
ajst-5638	3	86	system.the	system.the	PRON
ajst-5638	3	87	structure	structure	NOUN
ajst-5638	3	88	optimization	optimization	NOUN
ajst-5638	3	89	and	and	CCONJ
ajst-5638	3	90	static	static	ADJ
ajst-5638	3	91	selfconsistent	selfconsistent	NOUN
ajst-5638	3	92	cycle	cycle	NOUN
ajst-5638	3	93	optimization	optimization	NOUN
ajst-5638	3	94	of	of	ADP
ajst-5638	3	95	the	the	DET
ajst-5638	3	96	doped	dope	VERB
ajst-5638	3	97	structure	structure	NOUN
ajst-5638	3	98	were	be	AUX
ajst-5638	3	99	carried	carry	VERB
ajst-5638	3	100	out	out	ADP
ajst-5638	3	101	.	.	PUNCT
ajst-5638	4	1	the	the	DET
ajst-5638	4	2	elastic	elastic	ADJ
ajst-5638	4	3	calculation	calculation	NOUN
ajst-5638	4	4	of	of	ADP
ajst-5638	4	5	the	the	DET
ajst-5638	4	6	optimized	optimize	VERB
ajst-5638	4	7	structure	structure	NOUN
ajst-5638	4	8	was	be	AUX
ajst-5638	4	9	carried	carry	VERB
ajst-5638	4	10	out	out	ADP
ajst-5638	4	11	under	under	ADP
ajst-5638	4	12	the	the	DET
ajst-5638	4	13	pressure	pressure	NOUN
ajst-5638	4	14	of	of	ADP
ajst-5638	4	15	0gpa	0gpa	NOUN
ajst-5638	4	16	.	.	PUNCT
ajst-5638	5	1	through	through	ADP
ajst-5638	5	2	the	the	DET
ajst-5638	5	3	analysis	analysis	NOUN
ajst-5638	5	4	of	of	ADP
ajst-5638	5	5	the	the	DET
ajst-5638	5	6	calculation	calculation	NOUN
ajst-5638	5	7	results	result	NOUN
ajst-5638	5	8	,	,	PUNCT
ajst-5638	5	9	the	the	DET
ajst-5638	5	10	compound	compound	NOUN
ajst-5638	5	11	has	have	AUX
ajst-5638	5	12	shown	show	VERB
ajst-5638	5	13	good	good	ADJ
ajst-5638	5	14	brittleness	brittleness	NOUN
ajst-5638	5	15	under	under	ADP
ajst-5638	5	16	certain	certain	ADJ
ajst-5638	5	17	doping	doping	NOUN
ajst-5638	5	18	ratios	ratio	NOUN
ajst-5638	5	19	.	.	PUNCT
ajst-5638	6	1	keywords	keyword	NOUN
ajst-5638	6	2	:	:	PUNCT
ajst-5638	6	3	first	first	ADJ
ajst-5638	6	4	principles	principle	NOUN
ajst-5638	6	5	,	,	PUNCT
ajst-5638	6	6	ir	ir	PROPN
ajst-5638	6	7	-	-	ADJ
ajst-5638	6	8	c	c	NOUN
ajst-5638	6	9	-	-	PUNCT
ajst-5638	6	10	n	n	PRON
ajst-5638	6	11	system	system	NOUN
ajst-5638	6	12	,	,	PUNCT
ajst-5638	6	13	doping	doping	NOUN
ajst-5638	6	14	,	,	PUNCT
ajst-5638	6	15	elastic	elastic	ADJ
ajst-5638	6	16	properties	property	NOUN
ajst-5638	6	17	,	,	PUNCT
ajst-5638	6	18	hardness	hardness	ADJ
ajst-5638	6	19	properties	property	NOUN
ajst-5638	6	20	.	.	PUNCT
ajst-5638	7	1	1	1	X
ajst-5638	7	2	.	.	X
ajst-5638	7	3	introduction	introduction	NOUN
ajst-5638	7	4	as	as	ADP
ajst-5638	7	5	a	a	DET
ajst-5638	7	6	transition	transition	NOUN
ajst-5638	7	7	metal	metal	NOUN
ajst-5638	7	8	suitable	suitable	ADJ
ajst-5638	7	9	for	for	ADP
ajst-5638	7	10	the	the	DET
ajst-5638	7	11	synthesis	synthesis	NOUN
ajst-5638	7	12	of	of	ADP
ajst-5638	7	13	superhard	superhard	ADJ
ajst-5638	7	14	materials	material	NOUN
ajst-5638	7	15	,	,	PUNCT
ajst-5638	7	16	iridium	iridium	NOUN
ajst-5638	7	17	has	have	VERB
ajst-5638	7	18	a	a	DET
ajst-5638	7	19	slightly	slightly	ADV
ajst-5638	7	20	lower	low	ADJ
ajst-5638	7	21	elastic	elastic	ADJ
ajst-5638	7	22	modulus	modulus	NOUN
ajst-5638	7	23	than	than	ADP
ajst-5638	7	24	osmium	osmium	NOUN
ajst-5638	7	25	,	,	PUNCT
ajst-5638	7	26	which	which	PRON
ajst-5638	7	27	is	be	AUX
ajst-5638	7	28	the	the	DET
ajst-5638	7	29	second	second	ADJ
ajst-5638	7	30	highest	high	ADJ
ajst-5638	7	31	among	among	ADP
ajst-5638	7	32	all	all	DET
ajst-5638	7	33	metals[1].its	metals[1].it	NOUN
ajst-5638	7	34	high	high	ADJ
ajst-5638	7	35	shear	shear	NOUN
ajst-5638	7	36	modulus	modulus	NOUN
ajst-5638	7	37	and	and	CCONJ
ajst-5638	7	38	low	low	ADJ
ajst-5638	7	39	poisson	poisson	NOUN
ajst-5638	7	40	's	's	PART
ajst-5638	7	41	ratio	ratio	NOUN
ajst-5638	7	42	make	make	VERB
ajst-5638	7	43	it	it	PRON
ajst-5638	7	44	very	very	ADV
ajst-5638	7	45	hard	hard	ADV
ajst-5638	7	46	to	to	PART
ajst-5638	7	47	process	process	VERB
ajst-5638	7	48	iridium.though	iridium.though	PRON
ajst-5638	7	49	difficult	difficult	ADJ
ajst-5638	7	50	and	and	CCONJ
ajst-5638	7	51	expensive	expensive	ADJ
ajst-5638	7	52	to	to	PART
ajst-5638	7	53	produce	produce	VERB
ajst-5638	7	54	,	,	PUNCT
ajst-5638	7	55	iridium	iridium	NOUN
ajst-5638	7	56	has	have	VERB
ajst-5638	7	57	a	a	DET
ajst-5638	7	58	number	number	NOUN
ajst-5638	7	59	of	of	ADP
ajst-5638	7	60	applications	application	NOUN
ajst-5638	7	61	,	,	PUNCT
ajst-5638	7	62	including	include	VERB
ajst-5638	7	63	strengthening	strengthen	VERB
ajst-5638	7	64	machinery	machinery	NOUN
ajst-5638	7	65	in	in	ADP
ajst-5638	7	66	extreme	extreme	ADJ
ajst-5638	7	67	conditions.iridium	conditions.iridium	NOUN
ajst-5638	7	68	is	be	AUX
ajst-5638	7	69	highly	highly	ADV
ajst-5638	7	70	resistant	resistant	ADJ
ajst-5638	7	71	to	to	ADP
ajst-5638	7	72	corrosion	corrosion	NOUN
ajst-5638	7	73	and	and	CCONJ
ajst-5638	7	74	high	high	ADJ
ajst-5638	7	75	temperature	temperature	NOUN
ajst-5638	7	76	,	,	PUNCT
ajst-5638	7	77	so	so	CCONJ
ajst-5638	7	78	it	it	PRON
ajst-5638	7	79	is	be	AUX
ajst-5638	7	80	very	very	ADV
ajst-5638	7	81	suitable	suitable	ADJ
ajst-5638	7	82	as	as	ADP
ajst-5638	7	83	an	an	DET
ajst-5638	7	84	alloy	alloy	NOUN
ajst-5638	7	85	additive[2	additive[2	NOUN
ajst-5638	7	86	-	-	PUNCT
ajst-5638	7	87	4	4	NUM
ajst-5638	7	88	]	]	PUNCT
ajst-5638	7	89	.	.	PUNCT
ajst-5638	8	1	the	the	DET
ajst-5638	8	2	properties	property	NOUN
ajst-5638	8	3	of	of	ADP
ajst-5638	8	4	materials	material	NOUN
ajst-5638	8	5	are	be	AUX
ajst-5638	8	6	mainly	mainly	ADV
ajst-5638	8	7	affected	affect	VERB
ajst-5638	8	8	by	by	ADP
ajst-5638	8	9	the	the	DET
ajst-5638	8	10	crystal	crystal	NOUN
ajst-5638	8	11	structure	structure	NOUN
ajst-5638	8	12	and	and	CCONJ
ajst-5638	8	13	chemical	chemical	NOUN
ajst-5638	8	14	bond	bond	NOUN
ajst-5638	8	15	,	,	PUNCT
ajst-5638	8	16	so	so	SCONJ
ajst-5638	8	17	the	the	DET
ajst-5638	8	18	properties	property	NOUN
ajst-5638	8	19	of	of	ADP
ajst-5638	8	20	materials	material	NOUN
ajst-5638	8	21	can	can	AUX
ajst-5638	8	22	be	be	AUX
ajst-5638	8	23	optimized	optimize	VERB
ajst-5638	8	24	by	by	ADP
ajst-5638	8	25	improving	improve	VERB
ajst-5638	8	26	the	the	DET
ajst-5638	8	27	chemical	chemical	NOUN
ajst-5638	8	28	bond	bond	NOUN
ajst-5638	8	29	structure	structure	NOUN
ajst-5638	8	30	of	of	ADP
ajst-5638	8	31	materials[5].in	materials[5].in	PROPN
ajst-5638	8	32	the	the	DET
ajst-5638	8	33	actual	actual	ADJ
ajst-5638	8	34	production	production	NOUN
ajst-5638	8	35	and	and	CCONJ
ajst-5638	8	36	application	application	NOUN
ajst-5638	8	37	of	of	ADP
ajst-5638	8	38	metal	metal	NOUN
ajst-5638	8	39	materials	material	NOUN
ajst-5638	8	40	,	,	PUNCT
ajst-5638	8	41	alloying	alloying	NOUN
ajst-5638	8	42	of	of	ADP
ajst-5638	8	43	materials	material	NOUN
ajst-5638	8	44	by	by	ADP
ajst-5638	8	45	adding	add	VERB
ajst-5638	8	46	solute	solute	NOUN
ajst-5638	8	47	atoms	atom	NOUN
ajst-5638	8	48	is	be	AUX
ajst-5638	8	49	a	a	DET
ajst-5638	8	50	conventional	conventional	ADJ
ajst-5638	8	51	means	mean	NOUN
ajst-5638	8	52	to	to	PART
ajst-5638	8	53	improve	improve	VERB
ajst-5638	8	54	material	material	NOUN
ajst-5638	8	55	properties.this	properties.this	PROPN
ajst-5638	8	56	is	be	AUX
ajst-5638	8	57	because	because	SCONJ
ajst-5638	8	58	the	the	DET
ajst-5638	8	59	existence	existence	NOUN
ajst-5638	8	60	of	of	ADP
ajst-5638	8	61	solute	solute	NOUN
ajst-5638	8	62	(	(	PUNCT
ajst-5638	8	63	alloy	alloy	NOUN
ajst-5638	8	64	)	)	PUNCT
ajst-5638	8	65	atoms	atom	NOUN
ajst-5638	8	66	will	will	AUX
ajst-5638	8	67	affect	affect	VERB
ajst-5638	8	68	the	the	DET
ajst-5638	8	69	chemical	chemical	NOUN
ajst-5638	8	70	bond	bond	NOUN
ajst-5638	8	71	structure	structure	NOUN
ajst-5638	8	72	of	of	ADP
ajst-5638	8	73	its	its	PRON
ajst-5638	8	74	surrounding	surround	VERB
ajst-5638	8	75	atoms	atom	NOUN
ajst-5638	8	76	,	,	PUNCT
ajst-5638	8	77	thus	thus	ADV
ajst-5638	8	78	affecting	affect	VERB
ajst-5638	8	79	the	the	DET
ajst-5638	8	80	macroscopic	macroscopic	ADJ
ajst-5638	8	81	properties	property	NOUN
ajst-5638	8	82	of	of	ADP
ajst-5638	8	83	materials[6	materials[6	PROPN
ajst-5638	8	84	-	-	PUNCT
ajst-5638	8	85	8	8	NUM
ajst-5638	8	86	]	]	PUNCT
ajst-5638	8	87	.	.	PUNCT
ajst-5638	9	1	therefore	therefore	ADV
ajst-5638	9	2	,	,	PUNCT
ajst-5638	9	3	we	we	PRON
ajst-5638	9	4	can	can	AUX
ajst-5638	9	5	study	study	VERB
ajst-5638	9	6	the	the	DET
ajst-5638	9	7	superhard	superhard	NOUN
ajst-5638	9	8	properties	property	NOUN
ajst-5638	9	9	of	of	ADP
ajst-5638	9	10	ir	ir	PROPN
ajst-5638	9	11	element	element	NOUN
ajst-5638	9	12	by	by	ADP
ajst-5638	9	13	adding	add	VERB
ajst-5638	9	14	solute	solute	NOUN
ajst-5638	9	15	atoms	atom	NOUN
ajst-5638	9	16	to	to	ADP
ajst-5638	9	17	it	it	PRON
ajst-5638	9	18	,	,	PUNCT
ajst-5638	9	19	and	and	CCONJ
ajst-5638	9	20	ir	ir	PROPN
ajst-5638	9	21	element	element	NOUN
ajst-5638	9	22	belongs	belong	VERB
ajst-5638	9	23	to	to	ADP
ajst-5638	9	24	transition	transition	NOUN
ajst-5638	9	25	metal	metal	NOUN
ajst-5638	9	26	.	.	PUNCT
ajst-5638	10	1	currently	currently	ADV
ajst-5638	10	2	,	,	PUNCT
ajst-5638	10	3	research	research	NOUN
ajst-5638	10	4	on	on	ADP
ajst-5638	10	5	new	new	ADJ
ajst-5638	10	6	superhard	superhard	NOUN
ajst-5638	10	7	materials	material	NOUN
ajst-5638	10	8	focuses	focus	VERB
ajst-5638	10	9	on	on	ADP
ajst-5638	10	10	introducing	introduce	VERB
ajst-5638	10	11	light	light	ADJ
ajst-5638	10	12	elements	element	NOUN
ajst-5638	10	13	to	to	PART
ajst-5638	10	14	form	form	VERB
ajst-5638	10	15	strong	strong	ADJ
ajst-5638	10	16	bonds	bond	NOUN
ajst-5638	10	17	(	(	PUNCT
ajst-5638	10	18	b	b	X
ajst-5638	10	19	,	,	PUNCT
ajst-5638	10	20	c	c	NOUN
ajst-5638	10	21	,	,	PUNCT
ajst-5638	10	22	n	n	CCONJ
ajst-5638	10	23	,	,	PUNCT
ajst-5638	10	24	o	o	NOUN
ajst-5638	10	25	)	)	PUNCT
ajst-5638	10	26	into	into	ADP
ajst-5638	10	27	transition	transition	NOUN
ajst-5638	10	28	metals	metal	NOUN
ajst-5638	10	29	with	with	ADP
ajst-5638	10	30	high	high	ADJ
ajst-5638	10	31	elastic	elastic	ADJ
ajst-5638	10	32	modulus[9	modulus[9	NOUN
ajst-5638	10	33	-	-	PUNCT
ajst-5638	10	34	12].in	12].in	NUM
ajst-5638	10	35	addition	addition	NOUN
ajst-5638	10	36	,	,	PUNCT
ajst-5638	10	37	certain	certain	ADJ
ajst-5638	10	38	achievements	achievement	NOUN
ajst-5638	10	39	have	have	AUX
ajst-5638	10	40	been	be	AUX
ajst-5638	10	41	made	make	VERB
ajst-5638	10	42	in	in	ADP
ajst-5638	10	43	the	the	DET
ajst-5638	10	44	research	research	NOUN
ajst-5638	10	45	on	on	ADP
ajst-5638	10	46	superhard	superhard	ADJ
ajst-5638	10	47	materials	material	NOUN
ajst-5638	10	48	nbb3	nbb3	NOUN
ajst-5638	10	49	,	,	PUNCT
ajst-5638	10	50	vb3	vb3	PROPN
ajst-5638	10	51	,	,	PUNCT
ajst-5638	10	52	crb4	crb4	PROPN
ajst-5638	10	53	,	,	PUNCT
ajst-5638	10	54	mb2	mb2	PROPN
ajst-5638	10	55	and	and	CCONJ
ajst-5638	10	56	reb2	reb2	PROPN
ajst-5638	10	57	under	under	ADP
ajst-5638	10	58	high	high	ADJ
ajst-5638	10	59	pressure	pressure	NOUN
ajst-5638	10	60	.	.	PUNCT
ajst-5638	11	1	wang	wang	PROPN
ajst-5638	11	2	peng	peng	PROPN
ajst-5638	11	3	,	,	PUNCT
ajst-5638	11	4	a	a	DET
ajst-5638	11	5	master	master	NOUN
ajst-5638	11	6	from	from	ADP
ajst-5638	11	7	kunming	kunming	PROPN
ajst-5638	11	8	university	university	PROPN
ajst-5638	11	9	of	of	ADP
ajst-5638	11	10	science	science	NOUN
ajst-5638	11	11	and	and	CCONJ
ajst-5638	11	12	technology	technology	NOUN
ajst-5638	11	13	,	,	PUNCT
ajst-5638	11	14	has	have	AUX
ajst-5638	11	15	made	make	VERB
ajst-5638	11	16	a	a	DET
ajst-5638	11	17	series	series	NOUN
ajst-5638	11	18	of	of	ADP
ajst-5638	11	19	analysis	analysis	NOUN
ajst-5638	11	20	and	and	CCONJ
ajst-5638	11	21	discussion	discussion	NOUN
ajst-5638	11	22	on	on	ADP
ajst-5638	11	23	the	the	DET
ajst-5638	11	24	brittleness	brittleness	NOUN
ajst-5638	11	25	mechanism	mechanism	NOUN
ajst-5638	11	26	of	of	ADP
ajst-5638	11	27	iridium	iridium	NOUN
ajst-5638	11	28	by	by	ADP
ajst-5638	11	29	using	use	VERB
ajst-5638	11	30	first	first	ADJ
ajst-5638	11	31	-	-	PUNCT
ajst-5638	11	32	principles	principle	NOUN
ajst-5638	11	33	calculation	calculation	NOUN
ajst-5638	11	34	(	(	PUNCT
ajst-5638	11	35	software	software	NOUN
ajst-5638	11	36	package	package	NOUN
ajst-5638	11	37	)	)	PUNCT
ajst-5638	11	38	as	as	ADP
ajst-5638	11	39	the	the	DET
ajst-5638	11	40	research	research	NOUN
ajst-5638	11	41	method.the	method.the	DET
ajst-5638	11	42	basic	basic	ADJ
ajst-5638	11	43	properties	property	NOUN
ajst-5638	11	44	of	of	ADP
ajst-5638	11	45	iridium	iridium	NOUN
ajst-5638	11	46	(	(	PUNCT
ajst-5638	11	47	including	include	VERB
ajst-5638	11	48	cohesion	cohesion	NOUN
ajst-5638	11	49	energy	energy	NOUN
ajst-5638	11	50	,	,	PUNCT
ajst-5638	11	51	equilibrium	equilibrium	NOUN
ajst-5638	11	52	lattice	lattice	PROPN
ajst-5638	11	53	constant	constant	ADJ
ajst-5638	11	54	,	,	PUNCT
ajst-5638	11	55	elastic	elastic	ADJ
ajst-5638	11	56	properties	property	NOUN
ajst-5638	11	57	,	,	PUNCT
ajst-5638	11	58	chemical	chemical	NOUN
ajst-5638	11	59	bond	bond	NOUN
ajst-5638	11	60	structure	structure	NOUN
ajst-5638	11	61	and	and	CCONJ
ajst-5638	11	62	the	the	DET
ajst-5638	11	63	influence	influence	NOUN
ajst-5638	11	64	of	of	ADP
ajst-5638	11	65	solute	solute	ADJ
ajst-5638	11	66	atoms	atom	NOUN
ajst-5638	11	67	on	on	ADP
ajst-5638	11	68	bond	bond	NOUN
ajst-5638	11	69	structure	structure	NOUN
ajst-5638	11	70	)	)	PUNCT
ajst-5638	11	71	,	,	PUNCT
ajst-5638	11	72	generalized	generalize	VERB
ajst-5638	11	73	stacking	stack	VERB
ajst-5638	11	74	fault	fault	NOUN
ajst-5638	11	75	energy	energy	NOUN
ajst-5638	11	76	,	,	PUNCT
ajst-5638	11	77	properties	property	NOUN
ajst-5638	11	78	of	of	ADP
ajst-5638	11	79	dislocation	dislocation	NOUN
ajst-5638	11	80	,	,	PUNCT
ajst-5638	11	81	nucleation	nucleation	NOUN
ajst-5638	11	82	and	and	CCONJ
ajst-5638	11	83	propagation	propagation	NOUN
ajst-5638	11	84	of	of	ADP
ajst-5638	11	85	microcracks	microcrack	NOUN
ajst-5638	11	86	were	be	AUX
ajst-5638	11	87	calculated	calculate	VERB
ajst-5638	11	88	and	and	CCONJ
ajst-5638	11	89	analyzed[13].j.v.au	analyzed[13].j.v.au	PROPN
ajst-5638	11	90	.	.	PROPN
ajst-5638	11	91	,	,	PUNCT
ajst-5638	11	92	and	and	CCONJ
ajst-5638	11	93	a.litini	a.litini	NOUN
ajst-5638	11	94	prepared	prepare	VERB
ajst-5638	11	95	irb1.35	irb1.35	NOUN
ajst-5638	11	96	through	through	ADP
ajst-5638	11	97	experiments	experiment	NOUN
ajst-5638	11	98	,	,	PUNCT
ajst-5638	11	99	and	and	CCONJ
ajst-5638	11	100	analyzed	analyze	VERB
ajst-5638	11	101	its	its	PRON
ajst-5638	11	102	maximum	maximum	ADJ
ajst-5638	11	103	hardness	hardness	NOUN
ajst-5638	11	104	of	of	ADP
ajst-5638	11	105	49.8gpa	49.8gpa	NUM
ajst-5638	11	106	under	under	ADP
ajst-5638	11	107	0.49n	0.49n	NOUN
ajst-5638	11	108	load	load	NOUN
ajst-5638	11	109	by	by	ADP
ajst-5638	11	110	x	x	NOUN
ajst-5638	11	111	-	-	NOUN
ajst-5638	11	112	ray	ray	NOUN
ajst-5638	11	113	[	[	X
ajst-5638	11	114	14	14	NUM
ajst-5638	11	115	]	]	PUNCT
ajst-5638	11	116	.	.	PUNCT
ajst-5638	12	1	xiaofengli	xiaofengli	PROPN
ajst-5638	12	2	and	and	CCONJ
ajst-5638	12	3	junyidu	junyidu	PROPN
ajst-5638	12	4	predicted	predict	VERB
ajst-5638	12	5	irb3	irb3	NOUN
ajst-5638	12	6	of	of	ADP
ajst-5638	12	7	three	three	NUM
ajst-5638	12	8	different	different	ADJ
ajst-5638	12	9	space	space	NOUN
ajst-5638	12	10	groups	group	NOUN
ajst-5638	12	11	by	by	ADP
ajst-5638	12	12	calypos.moreover	calypos.moreover	PROPN
ajst-5638	12	13	,	,	PUNCT
ajst-5638	12	14	its	its	PRON
ajst-5638	12	15	electrical	electrical	ADJ
ajst-5638	12	16	and	and	CCONJ
ajst-5638	12	17	dynamic	dynamic	ADJ
ajst-5638	12	18	properties	property	NOUN
ajst-5638	12	19	and	and	CCONJ
ajst-5638	12	20	mechanical	mechanical	ADJ
ajst-5638	12	21	properties	property	NOUN
ajst-5638	12	22	were	be	AUX
ajst-5638	12	23	analyzed	analyze	VERB
ajst-5638	12	24	in	in	ADP
ajst-5638	12	25	combination	combination	NOUN
ajst-5638	12	26	with	with	ADP
ajst-5638	12	27	the	the	DET
ajst-5638	12	28	first	first	ADJ
ajst-5638	12	29	principles[15	principles[15	PROPN
ajst-5638	12	30	]	]	PUNCT
ajst-5638	12	31	.	.	PUNCT
ajst-5638	13	1	zhi	zhi	PROPN
ajst-5638	13	2	-	-	PROPN
ajst-5638	13	3	jian	jian	PROPN
ajst-5638	13	4	wu	wu	PROPN
ajst-5638	13	5	,	,	PUNCT
ajst-5638	13	6	er	er	INTJ
ajst-5638	13	7	-	-	PUNCT
ajst-5638	13	8	jun	jun	PROPN
ajst-5638	13	9	zhao	zhao	PROPN
ajst-5638	13	10	from	from	ADP
ajst-5638	13	11	the	the	DET
ajst-5638	13	12	chinese	chinese	PROPN
ajst-5638	13	13	academy	academy	PROPN
ajst-5638	13	14	of	of	ADP
ajst-5638	13	15	sciences	sciences	PROPN
ajst-5638	13	16	used	use	VERB
ajst-5638	13	17	vasp	vasp	NOUN
ajst-5638	13	18	software	software	NOUN
ajst-5638	13	19	to	to	PART
ajst-5638	13	20	test	test	VERB
ajst-5638	13	21	and	and	CCONJ
ajst-5638	13	22	calculate	calculate	VERB
ajst-5638	13	23	the	the	DET
ajst-5638	13	24	paw	paw	PROPN
ajst-5638	13	25	pseudopotential	pseudopotential	PROPN
ajst-5638	13	26	of	of	ADP
ajst-5638	13	27	projection	projection	NOUN
ajst-5638	13	28	plus	plus	CCONJ
ajst-5638	13	29	plane	plane	NOUN
ajst-5638	13	30	wave	wave	NOUN
ajst-5638	13	31	and	and	CCONJ
ajst-5638	13	32	the	the	DET
ajst-5638	13	33	pbe	pbe	ADJ
ajst-5638	13	34	functional	functional	NOUN
ajst-5638	13	35	under	under	ADP
ajst-5638	13	36	the	the	DET
ajst-5638	13	37	generalized	generalized	ADJ
ajst-5638	13	38	gradient	gradient	NOUN
ajst-5638	13	39	approximation	approximation	NOUN
ajst-5638	13	40	(	(	PUNCT
ajst-5638	13	41	gga	gga	PROPN
ajst-5638	13	42	)	)	PUNCT
ajst-5638	13	43	according	accord	VERB
ajst-5638	13	44	to	to	ADP
ajst-5638	13	45	the	the	DET
ajst-5638	13	46	first	first	ADJ
ajst-5638	13	47	principles.relatively	principles.relatively	ADV
ajst-5638	13	48	stable	stable	ADJ
ajst-5638	13	49	irn2	irn2	NOUN
ajst-5638	13	50	and	and	CCONJ
ajst-5638	13	51	irn3	irn3	NOUN
ajst-5638	13	52	compounds	compound	NOUN
ajst-5638	13	53	were	be	AUX
ajst-5638	13	54	obtained	obtain	VERB
ajst-5638	13	55	and	and	CCONJ
ajst-5638	13	56	their	their	PRON
ajst-5638	13	57	bulk	bulk	ADJ
ajst-5638	13	58	modulus	modulus	NOUN
ajst-5638	13	59	and	and	CCONJ
ajst-5638	13	60	shear	shear	NOUN
ajst-5638	13	61	modulus	modulus	NOUN
ajst-5638	13	62	were	be	AUX
ajst-5638	13	63	calculated	calculate	VERB
ajst-5638	13	64	,	,	PUNCT
ajst-5638	13	65	and	and	CCONJ
ajst-5638	13	66	their	their	PRON
ajst-5638	13	67	superhard	superhard	NOUN
ajst-5638	13	68	properties	property	NOUN
ajst-5638	13	69	were	be	AUX
ajst-5638	13	70	analyzed[16	analyzed[16	NOUN
ajst-5638	13	71	]	]	PUNCT
ajst-5638	13	72	.	.	PUNCT
ajst-5638	14	1	s.k.r.patila	s.k.r.patila	PROPN
ajst-5638	14	2	,	,	PUNCT
ajst-5638	14	3	s.v.hare	s.v.hare	NOUN
ajst-5638	14	4	et	et	PROPN
ajst-5638	14	5	al	al	PROPN
ajst-5638	14	6	.	.	PROPN
ajst-5638	14	7	calculated	calculate	VERB
ajst-5638	14	8	the	the	DET
ajst-5638	14	9	elastic	elastic	ADJ
ajst-5638	14	10	properties	property	NOUN
ajst-5638	14	11	of	of	ADP
ajst-5638	14	12	irn2	irn2	NOUN
ajst-5638	14	13	and	and	CCONJ
ajst-5638	14	14	compared	compare	VERB
ajst-5638	14	15	them	they	PRON
ajst-5638	14	16	with	with	ADP
ajst-5638	14	17	other	other	ADJ
ajst-5638	14	18	transition	transition	NOUN
ajst-5638	14	19	metal	metal	NOUN
ajst-5638	14	20	nitride	nitride	NOUN
ajst-5638	14	21	compounds.the	compounds.the	DET
ajst-5638	14	22	work	work	NOUN
ajst-5638	14	23	on	on	ADP
ajst-5638	14	24	the	the	DET
ajst-5638	14	25	synthesis	synthesis	NOUN
ajst-5638	14	26	and	and	CCONJ
ajst-5638	14	27	prediction	prediction	NOUN
ajst-5638	14	28	of	of	ADP
ajst-5638	14	29	nitrides	nitride	NOUN
ajst-5638	14	30	is	be	AUX
ajst-5638	14	31	analyzed[17].reviewing	analyzed[17].reviewe	VERB
ajst-5638	14	32	the	the	DET
ajst-5638	14	33	above	above	ADJ
ajst-5638	14	34	literature	literature	NOUN
ajst-5638	14	35	,	,	PUNCT
ajst-5638	14	36	it	it	PRON
ajst-5638	14	37	can	can	AUX
ajst-5638	14	38	be	be	AUX
ajst-5638	14	39	seen	see	VERB
ajst-5638	14	40	that	that	SCONJ
ajst-5638	14	41	studies	study	NOUN
ajst-5638	14	42	on	on	ADP
ajst-5638	14	43	the	the	DET
ajst-5638	14	44	hardness	hardness	NOUN
ajst-5638	14	45	properties	property	NOUN
ajst-5638	14	46	of	of	ADP
ajst-5638	14	47	light	light	ADJ
ajst-5638	14	48	elements	element	NOUN
ajst-5638	14	49	introduced	introduce	VERB
ajst-5638	14	50	into	into	ADP
ajst-5638	14	51	the	the	DET
ajst-5638	14	52	transition	transition	NOUN
ajst-5638	14	53	metal	metal	NOUN
ajst-5638	14	54	ir	ir	PROPN
ajst-5638	14	55	focus	focus	VERB
ajst-5638	14	56	on	on	ADP
ajst-5638	14	57	the	the	DET
ajst-5638	14	58	introduction	introduction	NOUN
ajst-5638	14	59	of	of	ADP
ajst-5638	14	60	a	a	DET
ajst-5638	14	61	single	single	ADJ
ajst-5638	14	62	element	element	NOUN
ajst-5638	14	63	,	,	PUNCT
ajst-5638	14	64	and	and	CCONJ
ajst-5638	14	65	few	few	ADJ
ajst-5638	14	66	literatures	literature	NOUN
ajst-5638	14	67	introduce	introduce	VERB
ajst-5638	14	68	two	two	NUM
ajst-5638	14	69	or	or	CCONJ
ajst-5638	14	70	more	more	ADJ
ajst-5638	14	71	light	light	ADJ
ajst-5638	14	72	elements	element	NOUN
ajst-5638	14	73	into	into	ADP
ajst-5638	14	74	the	the	DET
ajst-5638	14	75	transition	transition	NOUN
ajst-5638	14	76	metal	metal	NOUN
ajst-5638	14	77	iridium	iridium	NOUN
ajst-5638	14	78	at	at	ADP
ajst-5638	14	79	the	the	DET
ajst-5638	14	80	same	same	ADJ
ajst-5638	14	81	time	time	NOUN
ajst-5638	14	82	.	.	PUNCT
ajst-5638	15	1	therefore	therefore	ADV
ajst-5638	15	2	,	,	PUNCT
ajst-5638	15	3	do	do	VERB
ajst-5638	15	4	hard	hard	ADJ
ajst-5638	15	5	ir	ir	VERB
ajst-5638	15	6	-	-	ADJ
ajst-5638	15	7	c	c	NOUN
ajst-5638	15	8	-	-	PUNCT
ajst-5638	15	9	n	n	NOUN
ajst-5638	15	10	systems	system	NOUN
ajst-5638	15	11	exist	exist	VERB
ajst-5638	15	12	,	,	PUNCT
ajst-5638	15	13	and	and	CCONJ
ajst-5638	15	14	if	if	SCONJ
ajst-5638	15	15	so	so	ADV
ajst-5638	15	16	,	,	PUNCT
ajst-5638	15	17	what	what	PRON
ajst-5638	15	18	hardness	hardness	NOUN
ajst-5638	15	19	properties	property	NOUN
ajst-5638	15	20	do	do	AUX
ajst-5638	15	21	they	they	PRON
ajst-5638	15	22	have	have	AUX
ajst-5638	15	23	?	?	PUNCT
ajst-5638	15	24	inspired	inspire	VERB
ajst-5638	15	25	by	by	ADP
ajst-5638	15	26	this	this	DET
ajst-5638	15	27	background	background	NOUN
ajst-5638	15	28	,	,	PUNCT
ajst-5638	15	29	this	this	DET
ajst-5638	15	30	paper	paper	NOUN
ajst-5638	15	31	attempts	attempt	VERB
ajst-5638	15	32	to	to	PART
ajst-5638	15	33	introduce	introduce	VERB
ajst-5638	15	34	carbon	carbon	NOUN
ajst-5638	15	35	and	and	CCONJ
ajst-5638	15	36	nitrogen	nitrogen	NOUN
ajst-5638	15	37	atoms	atom	NOUN
ajst-5638	15	38	into	into	ADP
ajst-5638	15	39	the	the	DET
ajst-5638	15	40	transition	transition	NOUN
ajst-5638	15	41	metal	metal	NOUN
ajst-5638	15	42	iridium	iridium	NOUN
ajst-5638	15	43	to	to	PART
ajst-5638	15	44	form	form	VERB
ajst-5638	15	45	a	a	DET
ajst-5638	15	46	new	new	ADJ
ajst-5638	15	47	compound	compound	NOUN
ajst-5638	15	48	,	,	PUNCT
ajst-5638	15	49	and	and	CCONJ
ajst-5638	15	50	calculates	calculate	VERB
ajst-5638	15	51	its	its	PRON
ajst-5638	15	52	properties	property	NOUN
ajst-5638	15	53	through	through	ADP
ajst-5638	15	54	first	first	ADJ
ajst-5638	15	55	principles	principle	NOUN
ajst-5638	15	56	,	,	PUNCT
ajst-5638	15	57	and	and	CCONJ
ajst-5638	15	58	studies	study	NOUN
ajst-5638	15	59	the	the	DET
ajst-5638	15	60	hardness	hardness	ADJ
ajst-5638	15	61	characteristics	characteristic	NOUN
ajst-5638	15	62	of	of	ADP
ajst-5638	15	63	ir	ir	PROPN
ajst-5638	15	64	-	-	ADJ
ajst-5638	15	65	c	c	NOUN
ajst-5638	15	66	-	-	PUNCT
ajst-5638	15	67	n	n	PRON
ajst-5638	15	68	system	system	NOUN
ajst-5638	15	69	by	by	ADP
ajst-5638	15	70	referring	refer	VERB
ajst-5638	15	71	to	to	ADP
ajst-5638	15	72	previous	previous	ADJ
ajst-5638	15	73	experience	experience	NOUN
ajst-5638	15	74	.	.	PUNCT
ajst-5638	16	1	2	2	X
ajst-5638	16	2	.	.	X
ajst-5638	16	3	computational	computational	ADJ
ajst-5638	16	4	methods	method	NOUN
ajst-5638	16	5	in	in	ADP
ajst-5638	16	6	this	this	DET
ajst-5638	16	7	paper	paper	NOUN
ajst-5638	16	8	,	,	PUNCT
ajst-5638	16	9	the	the	DET
ajst-5638	16	10	projection	projection	NOUN
ajst-5638	16	11	and	and	CCONJ
ajst-5638	16	12	plane	plane	NOUN
ajst-5638	16	13	-	-	PUNCT
ajst-5638	16	14	wave	wave	NOUN
ajst-5638	16	15	method	method	NOUN
ajst-5638	16	16	(	(	PUNCT
ajst-5638	16	17	paw	paw	NOUN
ajst-5638	16	18	)	)	PUNCT
ajst-5638	16	19	of	of	ADP
ajst-5638	16	20	density	density	NOUN
ajst-5638	16	21	functional	functional	ADJ
ajst-5638	16	22	theory	theory	NOUN
ajst-5638	16	23	(	(	PUNCT
ajst-5638	16	24	dft	dft	NOUN
ajst-5638	16	25	)	)	PUNCT
ajst-5638	16	26	and	and	CCONJ
ajst-5638	16	27	the	the	DET
ajst-5638	16	28	pbe	pbe	PROPN
ajst-5638	16	29	functional[18,19	functional[18,19	ADV
ajst-5638	16	30	]	]	PUNCT
ajst-5638	16	31	under	under	ADP
ajst-5638	16	32	the	the	DET
ajst-5638	16	33	generalized	generalized	ADJ
ajst-5638	16	34	gradient	gradient	NOUN
ajst-5638	16	35	approximation	approximation	NOUN
ajst-5638	16	36	(	(	PUNCT
ajst-5638	16	37	gga)[18	gga)[18	PROPN
ajst-5638	16	38	]	]	PUNCT
ajst-5638	16	39	are	be	AUX
ajst-5638	16	40	used	use	VERB
ajst-5638	16	41	to	to	PART
ajst-5638	16	42	analyze	analyze	VERB
ajst-5638	16	43	the	the	DET
ajst-5638	16	44	ir	ir	NOUN
ajst-5638	16	45	-	-	PROPN
ajst-5638	16	46	c	c	NOUN
ajst-5638	16	47	structure	structure	NOUN
ajst-5638	16	48	of	of	ADP
ajst-5638	16	49	pnma	pnma	NOUN
ajst-5638	16	50	and	and	CCONJ
ajst-5638	16	51	the	the	DET
ajst-5638	16	52	ir	ir	PROPN
ajst-5638	16	53	-	-	ADJ
ajst-5638	16	54	n	n	PRON
ajst-5638	16	55	structure	structure	NOUN
ajst-5638	16	56	of	of	ADP
ajst-5638	16	57	pnnm	pnnm	NOUN
ajst-5638	16	58	,	,	PUNCT
ajst-5638	16	59	and	and	CCONJ
ajst-5638	16	60	the	the	DET
ajst-5638	16	61	stability	stability	NOUN
ajst-5638	16	62	and	and	CCONJ
ajst-5638	16	63	elastic	elastic	ADJ
ajst-5638	16	64	properties	property	NOUN
ajst-5638	16	65	of	of	ADP
ajst-5638	16	66	the	the	DET
ajst-5638	16	67	structure	structure	NOUN
ajst-5638	16	68	are	be	AUX
ajst-5638	16	69	measured.the	measured.the	NUM
ajst-5638	16	70	selected	select	VERB
ajst-5638	16	71	space	space	NOUN
ajst-5638	16	72	groups	group	NOUN
ajst-5638	16	73	are	be	AUX
ajst-5638	16	74	doped	dope	VERB
ajst-5638	16	75	by	by	ADP
ajst-5638	16	76	veats	veat	NOUN
ajst-5638	16	77	modeling	modeling	NOUN
ajst-5638	16	78	,	,	PUNCT
ajst-5638	16	79	and	and	CCONJ
ajst-5638	16	80	then	then	ADV
ajst-5638	16	81	the	the	DET
ajst-5638	16	82	properties	property	NOUN
ajst-5638	16	83	of	of	ADP
ajst-5638	16	84	ir	ir	PROPN
ajst-5638	16	85	-	-	ADJ
ajst-5638	16	86	c	c	NOUN
ajst-5638	16	87	-	-	PUNCT
ajst-5638	16	88	n	n	NOUN
ajst-5638	16	89	systems	system	NOUN
ajst-5638	16	90	with	with	ADP
ajst-5638	16	91	different	different	ADJ
ajst-5638	16	92	proportions	proportion	NOUN
ajst-5638	16	93	are	be	AUX
ajst-5638	16	94	calculated	calculate	VERB
ajst-5638	16	95	.	.	PUNCT
ajst-5638	17	1	the	the	DET
ajst-5638	17	2	pnma	pnma	ADJ
ajst-5638	17	3	-	-	PUNCT
ajst-5638	17	4	structured	structured	ADJ
ajst-5638	17	5	ir	ir	NOUN
ajst-5638	17	6	-	-	PROPN
ajst-5638	17	7	c	c	PROPN
ajst-5638	17	8	was	be	AUX
ajst-5638	17	9	doped	dope	VERB
ajst-5638	17	10	with	with	ADP
ajst-5638	17	11	nitrogen	nitrogen	NOUN
ajst-5638	17	12	atoms	atom	NOUN
ajst-5638	17	13	and	and	CCONJ
ajst-5638	17	14	optimized	optimize	VERB
ajst-5638	17	15	in	in	ADP
ajst-5638	17	16	the	the	DET
ajst-5638	17	17	doping	doping	NOUN
ajst-5638	17	18	mode	mode	NOUN
ajst-5638	17	19	of	of	ADP
ajst-5638	17	20	ir4c(12	ir4c(12	PROPN
ajst-5638	17	21	-	-	PUNCT
ajst-5638	17	22	x)nx(x=0,2,4,6	x)nx(x=0,2,4,6	PROPN
ajst-5638	17	23	)	)	PUNCT
ajst-5638	17	24	.	.	PUNCT
ajst-5638	18	1	the	the	DET
ajst-5638	18	2	pnnm	pnnm	ADV
ajst-5638	18	3	-	-	PUNCT
ajst-5638	18	4	structured	structure	VERB
ajst-5638	18	5	ir	ir	NOUN
ajst-5638	18	6	-	-	NOUN
ajst-5638	18	7	n	n	NOUN
ajst-5638	18	8	was	be	AUX
ajst-5638	18	9	doped	dope	VERB
ajst-5638	18	10	with	with	ADP
ajst-5638	18	11	carbon	carbon	NOUN
ajst-5638	18	12	atoms	atom	NOUN
ajst-5638	18	13	and	and	CCONJ
ajst-5638	18	14	its	its	PRON
ajst-5638	18	15	structure	structure	NOUN
ajst-5638	18	16	was	be	AUX
ajst-5638	18	17	optimized	optimize	VERB
ajst-5638	18	18	.	.	PUNCT
ajst-5638	19	1	the	the	DET
ajst-5638	19	2	doping	doping	NOUN
ajst-5638	19	3	mode	mode	NOUN
ajst-5638	19	4	was	be	AUX
ajst-5638	19	5	ir2n(4x)cx(x=0,1,2,3	ir2n(4x)cx(x=0,1,2,3	ADJ
ajst-5638	19	6	)	)	PUNCT
ajst-5638	19	7	in	in	ADP
ajst-5638	19	8	calculation	calculation	NOUN
ajst-5638	19	9	,	,	PUNCT
ajst-5638	19	10	a	a	DET
ajst-5638	19	11	square	square	ADJ
ajst-5638	19	12	wave	wave	NOUN
ajst-5638	19	13	base	base	NOUN
ajst-5638	19	14	with	with	ADP
ajst-5638	19	15	cutoff	cutoff	NOUN
ajst-5638	19	16	energy	energy	NOUN
ajst-5638	19	17	of	of	ADP
ajst-5638	19	18	500ev	500ev	NOUN
ajst-5638	19	19	was	be	AUX
ajst-5638	19	20	selected	select	VERB
ajst-5638	19	21	.	.	PUNCT
ajst-5638	20	1	to	to	PART
ajst-5638	20	2	ensure	ensure	VERB
ajst-5638	20	3	the	the	DET
ajst-5638	20	4	convergence	convergence	NOUN
ajst-5638	20	5	of	of	ADP
ajst-5638	20	6	energy	energy	NOUN
ajst-5638	20	7	and	and	CCONJ
ajst-5638	20	8	structure	structure	NOUN
ajst-5638	20	9	of	of	ADP
ajst-5638	20	10	the	the	DET
ajst-5638	20	11	system	system	NOUN
ajst-5638	20	12	at	at	ADP
ajst-5638	20	13	the	the	DET
ajst-5638	20	14	plane	plane	NOUN
ajst-5638	20	15	wave	wave	NOUN
ajst-5638	20	16	base	base	NOUN
ajst-5638	20	17	level	level	NOUN
ajst-5638	20	18	,	,	PUNCT
ajst-5638	20	19	its	its	PRON
ajst-5638	20	20	selfconsistent	selfconsistent	NOUN
ajst-5638	20	21	accuracy	accuracy	NOUN
ajst-5638	20	22	was	be	AUX
ajst-5638	20	23	set	set	VERB
ajst-5638	20	24	at	at	ADP
ajst-5638	20	25	10	10	NUM
ajst-5638	20	26	-	-	PUNCT
ajst-5638	20	27	5ev	5ev	ADJ
ajst-5638	20	28	/	/	SYM
ajst-5638	20	29	atom	atom	NOUN
ajst-5638	20	30	,	,	PUNCT
ajst-5638	20	31	and	and	CCONJ
ajst-5638	20	32	the	the	DET
ajst-5638	20	33	convergence	convergence	NOUN
ajst-5638	20	34	standard	standard	NOUN
ajst-5638	20	35	of	of	ADP
ajst-5638	20	36	interatomic	interatomic	ADJ
ajst-5638	20	37	force	force	NOUN
ajst-5638	20	38	was	be	AUX
ajst-5638	20	39	set	set	VERB
ajst-5638	20	40	at	at	ADP
ajst-5638	20	41	102ev	102ev	NOUN
ajst-5638	20	42	/	/	SYM
ajst-5638	21	1	a[20	a[20	PROPN
ajst-5638	21	2	]	]	X
ajst-5638	22	1	230	230	NUM
ajst-5638	22	2	3	3	NUM
ajst-5638	22	3	.	.	PUNCT
ajst-5638	22	4	results	result	NOUN
ajst-5638	22	5	and	and	CCONJ
ajst-5638	22	6	discussion	discussion	NOUN
ajst-5638	22	7	3.1	3.1	NUM
ajst-5638	22	8	.	.	PUNCT
ajst-5638	23	1	calculation	calculation	NOUN
ajst-5638	23	2	of	of	ADP
ajst-5638	23	3	ir4c(12	ir4c(12	PROPN
ajst-5638	23	4	-	-	PUNCT
ajst-5638	23	5	x)nx(x=0,2,4,6	x)nx(x=0,2,4,6	PROPN
ajst-5638	23	6	)	)	PUNCT
ajst-5638	24	1	the	the	DET
ajst-5638	24	2	ideal	ideal	ADJ
ajst-5638	24	3	lattice	lattice	PROPN
ajst-5638	24	4	structure	structure	NOUN
ajst-5638	24	5	of	of	ADP
ajst-5638	24	6	irc	irc	PROPN
ajst-5638	24	7	in	in	ADP
ajst-5638	24	8	pnma	pnma	ADJ
ajst-5638	24	9	system	system	NOUN
ajst-5638	24	10	was	be	AUX
ajst-5638	24	11	established.for	established.for	ADP
ajst-5638	24	12	ir4c12	ir4c12	PROPN
ajst-5638	24	13	system	system	NOUN
ajst-5638	24	14	,	,	PUNCT
ajst-5638	24	15	lattice	lattice	PROPN
ajst-5638	24	16	parameters	parameter	NOUN
ajst-5638	24	17	are	be	AUX
ajst-5638	24	18	a=2.60698	a=2.60698	ADJ
ajst-5638	25	1	å	å	PROPN
ajst-5638	25	2	，	，	PUNCT
ajst-5638	25	3	b=4.33881	b=4.33881	X
ajst-5638	26	1	å	å	X
ajst-5638	26	2	，	，	PROPN
ajst-5638	26	3	c=13.62879	c=13.62879	NOUN
ajst-5638	26	4	å	å	X
ajst-5638	26	5	,	,	PUNCT
ajst-5638	26	6	as	as	SCONJ
ajst-5638	26	7	shown	show	VERB
ajst-5638	26	8	in	in	ADP
ajst-5638	26	9	table	table	NOUN
ajst-5638	26	10	1	1	NUM
ajst-5638	26	11	:	:	PUNCT
ajst-5638	26	12	table	table	NOUN
ajst-5638	26	13	1	1	NUM
ajst-5638	26	14	.	.	PUNCT
ajst-5638	26	15	lattice	lattice	PROPN
ajst-5638	26	16	constant	constant	ADJ
ajst-5638	26	17	of	of	ADP
ajst-5638	26	18	ir4c	ir4c	PROPN
ajst-5638	26	19	(	(	PUNCT
ajst-5638	26	20	12	12	NUM
ajst-5638	26	21	-x	-x	NOUN
ajst-5638	26	22	)	)	PUNCT
ajst-5638	26	23	nx(x=0,2,4,6	nx(x=0,2,4,6	NOUN
ajst-5638	26	24	)	)	PUNCT
ajst-5638	26	25	.	.	PUNCT
ajst-5638	27	1	on	on	ADP
ajst-5638	27	2	the	the	DET
ajst-5638	27	3	basis	basis	NOUN
ajst-5638	27	4	of	of	ADP
ajst-5638	27	5	the	the	DET
ajst-5638	27	6	ideal	ideal	ADJ
ajst-5638	27	7	ir4c12	ir4c12	PROPN
ajst-5638	27	8	,	,	PUNCT
ajst-5638	27	9	the	the	DET
ajst-5638	27	10	structure	structure	NOUN
ajst-5638	27	11	of	of	ADP
ajst-5638	27	12	ir4c(12x)nx(x=0,2,4,6	ir4c(12x)nx(x=0,2,4,6	NOUN
ajst-5638	27	13	)	)	PUNCT
ajst-5638	27	14	is	be	AUX
ajst-5638	27	15	constructed	construct	VERB
ajst-5638	27	16	,	,	PUNCT
ajst-5638	27	17	and	and	CCONJ
ajst-5638	27	18	the	the	DET
ajst-5638	27	19	structure	structure	NOUN
ajst-5638	27	20	is	be	AUX
ajst-5638	27	21	optimized	optimize	VERB
ajst-5638	27	22	by	by	ADP
ajst-5638	27	23	the	the	DET
ajst-5638	27	24	conjugate	conjugate	ADJ
ajst-5638	27	25	gradient	gradient	ADJ
ajst-5638	27	26	algorithm	algorithm	NOUN
ajst-5638	27	27	.	.	PUNCT
ajst-5638	28	1	by	by	ADP
ajst-5638	28	2	replacing	replace	VERB
ajst-5638	28	3	c	c	PROPN
ajst-5638	28	4	atom	atom	NOUN
ajst-5638	28	5	,	,	PUNCT
ajst-5638	28	6	n	n	DET
ajst-5638	28	7	atom	atom	NOUN
ajst-5638	28	8	is	be	AUX
ajst-5638	28	9	introduced.when	introduced.when	ADJ
ajst-5638	28	10	doping	dope	VERB
ajst-5638	28	11	the	the	DET
ajst-5638	28	12	ir	ir	PROPN
ajst-5638	28	13	-	-	PROPN
ajst-5638	28	14	c	c	NOUN
ajst-5638	28	15	system	system	NOUN
ajst-5638	28	16	,	,	PUNCT
ajst-5638	28	17	it	it	PRON
ajst-5638	28	18	was	be	AUX
ajst-5638	28	19	found	find	VERB
ajst-5638	28	20	that	that	SCONJ
ajst-5638	28	21	different	different	ADJ
ajst-5638	28	22	data	data	NOUN
ajst-5638	28	23	results	result	NOUN
ajst-5638	28	24	would	would	AUX
ajst-5638	28	25	be	be	AUX
ajst-5638	28	26	obtained	obtain	VERB
ajst-5638	28	27	by	by	ADP
ajst-5638	28	28	replacing	replace	VERB
ajst-5638	28	29	different	different	ADJ
ajst-5638	28	30	atoms	atom	NOUN
ajst-5638	28	31	with	with	ADP
ajst-5638	28	32	the	the	DET
ajst-5638	28	33	same	same	ADJ
ajst-5638	28	34	proportion	proportion	NOUN
ajst-5638	28	35	of	of	ADP
ajst-5638	28	36	doping	doping	NOUN
ajst-5638	28	37	.	.	PUNCT
ajst-5638	29	1	in	in	ADP
ajst-5638	29	2	view	view	NOUN
ajst-5638	29	3	of	of	ADP
ajst-5638	29	4	this	this	DET
ajst-5638	29	5	situation	situation	NOUN
ajst-5638	29	6	,	,	PUNCT
ajst-5638	29	7	i	i	PRON
ajst-5638	29	8	marked	mark	VERB
ajst-5638	29	9	each	each	DET
ajst-5638	29	10	atom	atom	NOUN
ajst-5638	29	11	and	and	CCONJ
ajst-5638	29	12	calculated	calculate	VERB
ajst-5638	29	13	the	the	DET
ajst-5638	29	14	data	data	NOUN
ajst-5638	29	15	results	result	NOUN
ajst-5638	29	16	of	of	ADP
ajst-5638	29	17	doping	dope	VERB
ajst-5638	29	18	different	different	ADJ
ajst-5638	29	19	atoms	atom	NOUN
ajst-5638	29	20	with	with	ADP
ajst-5638	29	21	the	the	DET
ajst-5638	29	22	same	same	ADJ
ajst-5638	29	23	proportion.as	proportion.as	NOUN
ajst-5638	29	24	is	be	AUX
ajst-5638	29	25	shown	show	VERB
ajst-5638	29	26	in	in	ADP
ajst-5638	29	27	figure	figure	NOUN
ajst-5638	29	28	1	1	NUM
ajst-5638	29	29	figure	figure	NOUN
ajst-5638	29	30	1	1	NUM
ajst-5638	29	31	.	.	PUNCT
ajst-5638	30	1	crystal	crystal	NOUN
ajst-5638	30	2	structure	structure	NOUN
ajst-5638	30	3	of	of	ADP
ajst-5638	30	4	ir4c	ir4c	PROPN
ajst-5638	30	5	(	(	PUNCT
ajst-5638	30	6	12	12	NUM
ajst-5638	30	7	-x	-x	NOUN
ajst-5638	30	8	)	)	PUNCT
ajst-5638	30	9	nx(x=0,2,4,6	nx(x=0,2,4,6	NOUN
ajst-5638	30	10	)	)	PUNCT
ajst-5638	31	1	(	(	PUNCT
ajst-5638	31	2	a)ir4c12;(b)ir4c10n2(1);(c)ir4c10n2(2);(d)ir4c10n2(3);(e)ir4c10n2(4	a)ir4c12;(b)ir4c10n2(1);(c)ir4c10n2(2);(d)ir4c10n2(3);(e)ir4c10n2(4	PROPN
ajst-5638	31	3	)	)	PUNCT
ajst-5638	31	4	(	(	PUNCT
ajst-5638	31	5	f)ir4c10n2(5);(g)ir4c10n2(6);(h)ir4c10n2(7);(i)ir4c10n2(8);(j)ir4	f)ir4c10n2(5);(g)ir4c10n2(6);(h)ir4c10n2(7);(i)ir4c10n2(8);(j)ir4	NOUN
ajst-5638	31	6	c10n2(9);(l)ir4c8n4;(m)ir4c6n6(1);(n)ir4c6n6(2	c10n2(9);(l)ir4c8n4;(m)ir4c6n6(1);(n)ir4c6n6(2	PROPN
ajst-5638	31	7	)	)	PUNCT
ajst-5638	31	8	through	through	ADP
ajst-5638	31	9	structural	structural	ADJ
ajst-5638	31	10	optimization	optimization	NOUN
ajst-5638	31	11	and	and	CCONJ
ajst-5638	31	12	static	static	ADJ
ajst-5638	31	13	self	self	NOUN
ajst-5638	31	14	-	-	PUNCT
ajst-5638	31	15	consistent	consistent	ADJ
ajst-5638	31	16	cycle	cycle	NOUN
ajst-5638	31	17	optimization	optimization	NOUN
ajst-5638	31	18	of	of	ADP
ajst-5638	31	19	the	the	DET
ajst-5638	31	20	doped	dope	VERB
ajst-5638	31	21	structure	structure	NOUN
ajst-5638	31	22	,	,	PUNCT
ajst-5638	31	23	the	the	DET
ajst-5638	31	24	elastic	elastic	ADJ
ajst-5638	31	25	constants	constant	NOUN
ajst-5638	31	26	,	,	PUNCT
ajst-5638	31	27	volume	volume	NOUN
ajst-5638	31	28	modulus	modulus	ADJ
ajst-5638	31	29	b	b	PROPN
ajst-5638	31	30	,	,	PUNCT
ajst-5638	31	31	shear	shear	ADJ
ajst-5638	31	32	modulus	modulus	NOUN
ajst-5638	31	33	g	g	PROPN
ajst-5638	31	34	,	,	PUNCT
ajst-5638	31	35	young	young	ADJ
ajst-5638	31	36	's	's	PART
ajst-5638	31	37	modulus	modulus	ADJ
ajst-5638	31	38	e	e	NOUN
ajst-5638	31	39	and	and	CCONJ
ajst-5638	31	40	poisson	poisson	PROPN
ajst-5638	31	41	's	's	PART
ajst-5638	31	42	ratio	ratio	NOUN
ajst-5638	31	43	v	v	NOUN
ajst-5638	31	44	of	of	ADP
ajst-5638	31	45	the	the	DET
ajst-5638	31	46	optimized	optimize	VERB
ajst-5638	31	47	structure	structure	NOUN
ajst-5638	31	48	were	be	AUX
ajst-5638	31	49	calculated	calculate	VERB
ajst-5638	31	50	under	under	ADP
ajst-5638	31	51	the	the	DET
ajst-5638	31	52	pressure	pressure	NOUN
ajst-5638	31	53	of	of	ADP
ajst-5638	31	54	0gpa.volume	0gpa.volume	ADJ
ajst-5638	31	55	modulus	modulus	NOUN
ajst-5638	31	56	is	be	AUX
ajst-5638	31	57	a	a	DET
ajst-5638	31	58	physical	physical	ADJ
ajst-5638	31	59	quantity	quantity	NOUN
ajst-5638	31	60	used	use	VERB
ajst-5638	31	61	to	to	PART
ajst-5638	31	62	reflect	reflect	VERB
ajst-5638	31	63	the	the	DET
ajst-5638	31	64	macroscopic	macroscopic	ADJ
ajst-5638	31	65	characteristics	characteristic	NOUN
ajst-5638	31	66	of	of	ADP
ajst-5638	31	67	materials	material	NOUN
ajst-5638	31	68	,	,	PUNCT
ajst-5638	31	69	that	that	ADV
ajst-5638	31	70	is	is	ADV
ajst-5638	31	71	,	,	PUNCT
ajst-5638	31	72	the	the	DET
ajst-5638	31	73	relationship	relationship	NOUN
ajst-5638	31	74	between	between	ADP
ajst-5638	31	75	the	the	DET
ajst-5638	31	76	bulk	bulk	ADJ
ajst-5638	31	77	strain	strain	NOUN
ajst-5638	31	78	and	and	CCONJ
ajst-5638	31	79	the	the	DET
ajst-5638	31	80	average	average	ADJ
ajst-5638	31	81	stress	stress	NOUN
ajst-5638	31	82	of	of	ADP
ajst-5638	31	83	an	an	DET
ajst-5638	31	84	object[20].shear	object[20].shear	ADJ
ajst-5638	31	85	modulus	modulus	NOUN
ajst-5638	31	86	is	be	AUX
ajst-5638	31	87	the	the	DET
ajst-5638	31	88	ratio	ratio	NOUN
ajst-5638	31	89	of	of	ADP
ajst-5638	31	90	shear	shear	NOUN
ajst-5638	31	91	stress	stress	NOUN
ajst-5638	31	92	to	to	ADP
ajst-5638	31	93	shear	shear	NOUN
ajst-5638	31	94	strain	strain	NOUN
ajst-5638	31	95	of	of	ADP
ajst-5638	31	96	a	a	DET
ajst-5638	31	97	material	material	NOUN
ajst-5638	31	98	under	under	ADP
ajst-5638	31	99	shear	shear	NOUN
ajst-5638	31	100	stress	stress	NOUN
ajst-5638	31	101	and	and	CCONJ
ajst-5638	31	102	within	within	ADP
ajst-5638	31	103	the	the	DET
ajst-5638	31	104	limit	limit	NOUN
ajst-5638	31	105	range	range	NOUN
ajst-5638	31	106	of	of	ADP
ajst-5638	31	107	elastic	elastic	ADJ
ajst-5638	31	108	deformation	deformation	NOUN
ajst-5638	31	109	ratio	ratio	NOUN
ajst-5638	31	110	,	,	PUNCT
ajst-5638	31	111	which	which	PRON
ajst-5638	31	112	represents	represent	VERB
ajst-5638	31	113	the	the	DET
ajst-5638	31	114	ability	ability	NOUN
ajst-5638	31	115	of	of	ADP
ajst-5638	31	116	a	a	DET
ajst-5638	31	117	material	material	NOUN
ajst-5638	31	118	to	to	PART
ajst-5638	31	119	resist	resist	VERB
ajst-5638	31	120	shear	shear	NOUN
ajst-5638	31	121	strain[21].large	strain[21].large	NOUN
ajst-5638	31	122	modulus	modulus	NOUN
ajst-5638	31	123	means	mean	VERB
ajst-5638	31	124	strong	strong	ADJ
ajst-5638	31	125	rigidity	rigidity	NOUN
ajst-5638	31	126	of	of	ADP
ajst-5638	31	127	the	the	DET
ajst-5638	31	128	material.young	material.young	PROPN
ajst-5638	31	129	's	's	PART
ajst-5638	31	130	modulus	modulus	NOUN
ajst-5638	31	131	is	be	AUX
ajst-5638	31	132	a	a	DET
ajst-5638	31	133	physical	physical	ADJ
ajst-5638	31	134	quantity	quantity	NOUN
ajst-5638	31	135	describing	describe	VERB
ajst-5638	31	136	the	the	DET
ajst-5638	31	137	resistance	resistance	NOUN
ajst-5638	31	138	of	of	ADP
ajst-5638	31	139	solid	solid	ADJ
ajst-5638	31	140	materials	material	NOUN
ajst-5638	31	141	to	to	ADP
ajst-5638	31	142	deformation.poisson	deformation.poisson	NOUN
ajst-5638	31	143	's	's	PART
ajst-5638	31	144	ratio	ratio	NOUN
ajst-5638	31	145	represents	represent	VERB
ajst-5638	31	146	the	the	DET
ajst-5638	31	147	volume	volume	NOUN
ajst-5638	31	148	change	change	NOUN
ajst-5638	31	149	during	during	ADP
ajst-5638	31	150	elastic	elastic	ADJ
ajst-5638	31	151	deformation	deformation	NOUN
ajst-5638	31	152	of	of	ADP
ajst-5638	31	153	materials[22].the	materials[22].the	DET
ajst-5638	31	154	calculation	calculation	NOUN
ajst-5638	31	155	results	result	NOUN
ajst-5638	31	156	show	show	VERB
ajst-5638	31	157	the	the	DET
ajst-5638	31	158	change	change	NOUN
ajst-5638	31	159	of	of	ADP
ajst-5638	31	160	elastic	elastic	ADJ
ajst-5638	31	161	modulus	modulus	NOUN
ajst-5638	31	162	of	of	ADP
ajst-5638	31	163	the	the	DET
ajst-5638	31	164	doped	dope	VERB
ajst-5638	31	165	ir	ir	PROPN
ajst-5638	31	166	-	-	PUNCT
ajst-5638	31	167	c	c	NOUN
ajst-5638	31	168	-	-	PUNCT
ajst-5638	31	169	n	n	PRON
ajst-5638	31	170	system	system	NOUN
ajst-5638	31	171	,	,	PUNCT
ajst-5638	31	172	as	as	SCONJ
ajst-5638	31	173	shown	show	VERB
ajst-5638	31	174	in	in	ADP
ajst-5638	31	175	table	table	NOUN
ajst-5638	31	176	2	2	NUM
ajst-5638	31	177	.	.	PUNCT
ajst-5638	31	178	table	table	NOUN
ajst-5638	31	179	2	2	NUM
ajst-5638	31	180	.	.	PUNCT
ajst-5638	31	181	elastic	elastic	ADJ
ajst-5638	31	182	constants	constant	NOUN
ajst-5638	31	183	cij(gpa	cij(gpa	NOUN
ajst-5638	31	184	)	)	PUNCT
ajst-5638	31	185	and	and	CCONJ
ajst-5638	31	186	elastic	elastic	ADJ
ajst-5638	31	187	moduli(gpa	moduli(gpa	NOUN
ajst-5638	31	188	)	)	PUNCT
ajst-5638	31	189	of	of	ADP
ajst-5638	31	190	ir4c(1	ir4c(1	PROPN
ajst-5638	31	191	2	2	NUM
ajst-5638	31	192	-x	-x	NOUN
ajst-5638	31	193	)	)	PUNCT
ajst-5638	31	194	nx(x=0,2,4,6	nx(x=0,2,4,6	NOUN
ajst-5638	31	195	)	)	PUNCT
ajst-5638	31	196	.	.	PUNCT
ajst-5638	32	1	b	b	X
ajst-5638	32	2	/	/	SYM
ajst-5638	32	3	g	g	PROPN
ajst-5638	32	4	is	be	AUX
ajst-5638	32	5	used	use	VERB
ajst-5638	32	6	to	to	PART
ajst-5638	32	7	describe	describe	VERB
ajst-5638	32	8	the	the	DET
ajst-5638	32	9	smaller	small	ADJ
ajst-5638	32	10	the	the	DET
ajst-5638	32	11	brittleness	brittleness	NOUN
ajst-5638	32	12	and	and	CCONJ
ajst-5638	32	13	ductility	ductility	NOUN
ajst-5638	32	14	ratio	ratio	NOUN
ajst-5638	32	15	of	of	ADP
ajst-5638	32	16	a	a	DET
ajst-5638	32	17	substance	substance	NOUN
ajst-5638	32	18	,	,	PUNCT
ajst-5638	32	19	the	the	PRON
ajst-5638	32	20	greater	great	ADJ
ajst-5638	32	21	the	the	DET
ajst-5638	32	22	hardness	hardness	NOUN
ajst-5638	32	23	of	of	ADP
ajst-5638	32	24	a	a	DET
ajst-5638	32	25	substance	substance	NOUN
ajst-5638	32	26	.	.	PUNCT
ajst-5638	33	1	1.75	1.75	NUM
ajst-5638	33	2	is	be	AUX
ajst-5638	33	3	the	the	DET
ajst-5638	33	4	critical	critical	ADJ
ajst-5638	33	5	point	point	NOUN
ajst-5638	33	6	.	.	PUNCT
ajst-5638	34	1	when	when	SCONJ
ajst-5638	34	2	b	b	X
ajst-5638	34	3	/	/	SYM
ajst-5638	34	4	g	g	NOUN
ajst-5638	34	5	is	be	AUX
ajst-5638	34	6	greater	great	ADJ
ajst-5638	34	7	than	than	ADP
ajst-5638	34	8	1.75	1.75	NUM
ajst-5638	34	9	,	,	PUNCT
ajst-5638	34	10	the	the	DET
ajst-5638	34	11	compound	compound	NOUN
ajst-5638	34	12	is	be	AUX
ajst-5638	34	13	malleable	malleable	ADJ
ajst-5638	34	14	,	,	PUNCT
ajst-5638	34	15	while	while	SCONJ
ajst-5638	34	16	when	when	SCONJ
ajst-5638	34	17	b/	b/	PROPN
ajst-5638	34	18	g	g	PROPN
ajst-5638	34	19	is	be	AUX
ajst-5638	34	20	less	less	ADJ
ajst-5638	34	21	than	than	ADP
ajst-5638	34	22	1.75	1.75	NUM
ajst-5638	34	23	,	,	PUNCT
ajst-5638	34	24	it	it	PRON
ajst-5638	34	25	is	be	AUX
ajst-5638	34	26	brittle[23].the	brittle[23].the	DET
ajst-5638	34	27	formation	formation	NOUN
ajst-5638	34	28	of	of	ADP
ajst-5638	34	29	new	new	ADJ
ajst-5638	34	30	covalent	covalent	NOUN
ajst-5638	34	31	bonds	bond	NOUN
ajst-5638	34	32	affects	affect	VERB
ajst-5638	34	33	the	the	DET
ajst-5638	34	34	hardness	hardness	NOUN
ajst-5638	34	35	of	of	ADP
ajst-5638	34	36	the	the	DET
ajst-5638	34	37	structure	structure	NOUN
ajst-5638	34	38	,	,	PUNCT
ajst-5638	34	39	causing	cause	VERB
ajst-5638	34	40	the	the	DET
ajst-5638	34	41	ductile	ductile	NOUN
ajst-5638	34	42	material	material	NOUN
ajst-5638	34	43	to	to	PART
ajst-5638	34	44	become	become	VERB
ajst-5638	34	45	brittle	brittle	ADJ
ajst-5638	34	46	.	.	PUNCT
ajst-5638	35	1	3.2	3.2	NUM
ajst-5638	35	2	.	.	PUNCT
ajst-5638	35	3	calculation	calculation	NOUN
ajst-5638	35	4	of	of	ADP
ajst-5638	35	5	ir2n(4	ir2n(4	PROPN
ajst-5638	35	6	-	-	PUNCT
ajst-5638	35	7	x)cx(x=0,1,2,3	x)cx(x=0,1,2,3	PROPN
ajst-5638	35	8	)	)	PUNCT
ajst-5638	35	9	through	through	ADP
ajst-5638	35	10	the	the	DET
ajst-5638	35	11	experience	experience	NOUN
ajst-5638	35	12	of	of	ADP
ajst-5638	35	13	ir	ir	PROPN
ajst-5638	35	14	-	-	PROPN
ajst-5638	35	15	c	c	NOUN
ajst-5638	35	16	doping	doping	NOUN
ajst-5638	35	17	,	,	PUNCT
ajst-5638	35	18	i	i	PRON
ajst-5638	35	19	also	also	ADV
ajst-5638	35	20	doped	dope	VERB
ajst-5638	35	21	the	the	DET
ajst-5638	35	22	irn	irn	NOUN
ajst-5638	35	23	system	system	NOUN
ajst-5638	35	24	of	of	ADP
ajst-5638	35	25	pnnm	pnnm	ADJ
ajst-5638	35	26	phase	phase	NOUN
ajst-5638	35	27	,	,	PUNCT
ajst-5638	35	28	as	as	SCONJ
ajst-5638	35	29	shown	show	VERB
ajst-5638	35	30	in	in	ADP
ajst-5638	35	31	figure	figure	NOUN
ajst-5638	35	32	2	2	NUM
ajst-5638	35	33	231	231	NUM
ajst-5638	35	34	figure	figure	NOUN
ajst-5638	35	35	2	2	NUM
ajst-5638	35	36	.	.	PUNCT
ajst-5638	35	37	crystal	crystal	NOUN
ajst-5638	35	38	structure	structure	NOUN
ajst-5638	35	39	of	of	ADP
ajst-5638	35	40	ir4n	ir4n	PROPN
ajst-5638	35	41	(	(	PUNCT
ajst-5638	35	42	4	4	NUM
ajst-5638	35	43	-x	-x	NOUN
ajst-5638	35	44	)	)	PUNCT
ajst-5638	35	45	cx(x=0,1,2,3	cx(x=0,1,2,3	NOUN
ajst-5638	35	46	)	)	PUNCT
ajst-5638	35	47	(	(	PUNCT
ajst-5638	35	48	a)ir2n4;(b)ir2n3c1(1);(c)ir2n3c1(2);(d)ir2n2c2(1);(e)ir2n2c2(2);(f	a)ir2n4;(b)ir2n3c1(1);(c)ir2n3c1(2);(d)ir2n2c2(1);(e)ir2n2c2(2);(f	NOUN
ajst-5638	35	49	)	)	PUNCT
ajst-5638	35	50	ir2n2c2(3);(g)ir2n1c3(1);(h)ir2n2c3(2	ir2n2c2(3);(g)ir2n1c3(1);(h)ir2n2c3(2	PROPN
ajst-5638	35	51	)	)	PUNCT
ajst-5638	35	52	lattice	lattice	PROPN
ajst-5638	35	53	parameters	parameter	NOUN
ajst-5638	35	54	are	be	AUX
ajst-5638	35	55	a=2.78011	a=2.78011	PROPN
ajst-5638	35	56	å	å	PROPN
ajst-5638	35	57	,	,	PUNCT
ajst-5638	35	58	b=4.09548	b=4.09548	NOUN
ajst-5638	35	59	å	å	PROPN
ajst-5638	35	60	,	,	PUNCT
ajst-5638	35	61	c=4.93031	c=4.93031	PROPN
ajst-5638	35	62	å	å	NOUN
ajst-5638	35	63	,	,	PUNCT
ajst-5638	35	64	as	as	SCONJ
ajst-5638	35	65	shown	show	VERB
ajst-5638	35	66	in	in	ADP
ajst-5638	35	67	table	table	NOUN
ajst-5638	35	68	3	3	NUM
ajst-5638	35	69	:	:	PUNCT
ajst-5638	35	70	table	table	NOUN
ajst-5638	35	71	3	3	NUM
ajst-5638	35	72	.	.	PUNCT
ajst-5638	35	73	lattice	lattice	PROPN
ajst-5638	35	74	constant	constant	ADJ
ajst-5638	35	75	of	of	ADP
ajst-5638	35	76	ir4c	ir4c	PROPN
ajst-5638	35	77	(	(	PUNCT
ajst-5638	35	78	4	4	NUM
ajst-5638	35	79	-x	-x	NOUN
ajst-5638	35	80	)	)	PUNCT
ajst-5638	35	81	nx(x=0,1,2,3	nx(x=0,1,2,3	NOUN
ajst-5638	35	82	)	)	PUNCT
ajst-5638	35	83	.	.	PUNCT
ajst-5638	36	1	on	on	ADP
ajst-5638	36	2	the	the	DET
ajst-5638	36	3	basis	basis	NOUN
ajst-5638	36	4	of	of	ADP
ajst-5638	36	5	ideal	ideal	ADJ
ajst-5638	36	6	ir	ir	NOUN
ajst-5638	36	7	-	-	PUNCT
ajst-5638	36	8	n	n	CCONJ
ajst-5638	36	9	,	,	PUNCT
ajst-5638	36	10	the	the	DET
ajst-5638	36	11	structure	structure	NOUN
ajst-5638	36	12	of	of	ADP
ajst-5638	36	13	ir2n(4x)cx(x=0,1,2,3	ir2n(4x)cx(x=0,1,2,3	NOUN
ajst-5638	36	14	)	)	PUNCT
ajst-5638	36	15	was	be	AUX
ajst-5638	36	16	constructed	construct	VERB
ajst-5638	36	17	,	,	PUNCT
ajst-5638	36	18	and	and	CCONJ
ajst-5638	36	19	the	the	DET
ajst-5638	36	20	structure	structure	NOUN
ajst-5638	36	21	was	be	AUX
ajst-5638	36	22	optimized	optimize	VERB
ajst-5638	36	23	.	.	PUNCT
ajst-5638	37	1	c	c	PROPN
ajst-5638	37	2	atom	atom	NOUN
ajst-5638	37	3	was	be	AUX
ajst-5638	37	4	introduced	introduce	VERB
ajst-5638	37	5	by	by	ADP
ajst-5638	37	6	replacing	replace	VERB
ajst-5638	37	7	n	n	DET
ajst-5638	37	8	atom	atom	NOUN
ajst-5638	37	9	,	,	PUNCT
ajst-5638	37	10	as	as	SCONJ
ajst-5638	37	11	shown	show	VERB
ajst-5638	37	12	in	in	ADP
ajst-5638	37	13	the	the	DET
ajst-5638	37	14	figure.the	figure.the	DET
ajst-5638	37	15	same	same	ADJ
ajst-5638	37	16	calculation	calculation	NOUN
ajst-5638	37	17	was	be	AUX
ajst-5638	37	18	made	make	VERB
ajst-5638	37	19	for	for	ADP
ajst-5638	37	20	the	the	DET
ajst-5638	37	21	optimized	optimize	VERB
ajst-5638	37	22	structure	structure	NOUN
ajst-5638	37	23	,	,	PUNCT
ajst-5638	37	24	as	as	SCONJ
ajst-5638	37	25	shown	show	VERB
ajst-5638	37	26	in	in	ADP
ajst-5638	37	27	table	table	NOUN
ajst-5638	37	28	4	4	NUM
ajst-5638	37	29	.	.	PUNCT
ajst-5638	37	30	table	table	NOUN
ajst-5638	37	31	4	4	NUM
ajst-5638	37	32	.	.	PUNCT
ajst-5638	37	33	elastic	elastic	ADJ
ajst-5638	37	34	constants	constant	NOUN
ajst-5638	37	35	cij(gpa	cij(gpa	NOUN
ajst-5638	37	36	)	)	PUNCT
ajst-5638	37	37	and	and	CCONJ
ajst-5638	37	38	elastic	elastic	ADJ
ajst-5638	37	39	moduli(gpa	moduli(gpa	NOUN
ajst-5638	37	40	)	)	PUNCT
ajst-5638	37	41	of	of	ADP
ajst-5638	37	42	ir4c(4	ir4c(4	PROPN
ajst-5638	37	43	-x	-x	PUNCT
ajst-5638	37	44	)	)	PUNCT
ajst-5638	37	45	nx(x=0,1,2,3	nx(x=0,1,2,3	NOUN
ajst-5638	37	46	)	)	PUNCT
ajst-5638	37	47	.	.	PUNCT
ajst-5638	38	1	the	the	DET
ajst-5638	38	2	results	result	NOUN
ajst-5638	38	3	showed	show	VERB
ajst-5638	38	4	that	that	SCONJ
ajst-5638	38	5	the	the	DET
ajst-5638	38	6	hardness	hardness	NOUN
ajst-5638	38	7	of	of	ADP
ajst-5638	38	8	the	the	DET
ajst-5638	38	9	original	original	ADJ
ajst-5638	38	10	ir	ir	PROPN
ajst-5638	38	11	-	-	ADJ
ajst-5638	38	12	n	n	PRON
ajst-5638	38	13	structure	structure	NOUN
ajst-5638	38	14	increased	increase	VERB
ajst-5638	38	15	when	when	SCONJ
ajst-5638	38	16	the	the	DET
ajst-5638	38	17	doped	dope	VERB
ajst-5638	38	18	carbon	carbon	NOUN
ajst-5638	38	19	atom	atom	NOUN
ajst-5638	38	20	ratio	ratio	NOUN
ajst-5638	38	21	was	be	AUX
ajst-5638	38	22	less	less	ADJ
ajst-5638	38	23	than	than	ADP
ajst-5638	38	24	0.5	0.5	NUM
ajst-5638	38	25	,	,	PUNCT
ajst-5638	38	26	and	and	CCONJ
ajst-5638	38	27	the	the	DET
ajst-5638	38	28	compound	compound	NOUN
ajst-5638	38	29	showed	show	VERB
ajst-5638	38	30	brittleness	brittleness	NOUN
ajst-5638	38	31	when	when	SCONJ
ajst-5638	38	32	ir2n(4x)cx(x=1	ir2n(4x)cx(x=1	PROPN
ajst-5638	38	33	)	)	PUNCT
ajst-5638	38	34	4	4	NUM
ajst-5638	38	35	.	.	PUNCT
ajst-5638	38	36	conclusion	conclusion	NOUN
ajst-5638	38	37	in	in	ADP
ajst-5638	38	38	this	this	DET
ajst-5638	38	39	paper	paper	NOUN
ajst-5638	38	40	,	,	PUNCT
ajst-5638	38	41	the	the	DET
ajst-5638	38	42	lattice	lattice	NOUN
ajst-5638	38	43	constants	constant	NOUN
ajst-5638	38	44	,	,	PUNCT
ajst-5638	38	45	energy	energy	NOUN
ajst-5638	38	46	and	and	CCONJ
ajst-5638	38	47	elastic	elastic	ADJ
ajst-5638	38	48	properties	property	NOUN
ajst-5638	38	49	of	of	ADP
ajst-5638	38	50	ir4c(12	ir4c(12	PROPN
ajst-5638	38	51	-	-	PUNCT
ajst-5638	38	52	x)nx(x=0,2,4,6	x)nx(x=0,2,4,6	PROPN
ajst-5638	38	53	)	)	PUNCT
ajst-5638	38	54	and	and	CCONJ
ajst-5638	38	55	ir2n(4	ir2n(4	PROPN
ajst-5638	38	56	-	-	PUNCT
ajst-5638	38	57	x)cx(x=0,1,2,3	x)cx(x=0,1,2,3	PROPN
ajst-5638	38	58	)	)	PUNCT
ajst-5638	38	59	structures	structure	NOUN
ajst-5638	38	60	are	be	AUX
ajst-5638	38	61	calculated	calculate	VERB
ajst-5638	38	62	using	use	VERB
ajst-5638	38	63	the	the	DET
ajst-5638	38	64	plane	plane	NOUN
ajst-5638	38	65	-	-	PUNCT
ajst-5638	38	66	wave	wave	NOUN
ajst-5638	38	67	projection	projection	NOUN
ajst-5638	38	68	method	method	NOUN
ajst-5638	38	69	(	(	PUNCT
ajst-5638	38	70	paw	paw	NOUN
ajst-5638	38	71	)	)	PUNCT
ajst-5638	38	72	of	of	ADP
ajst-5638	38	73	density	density	NOUN
ajst-5638	38	74	functional	functional	ADJ
ajst-5638	38	75	theory	theory	NOUN
ajst-5638	38	76	(	(	PUNCT
ajst-5638	38	77	dft	dft	NOUN
ajst-5638	38	78	)	)	PUNCT
ajst-5638	38	79	and	and	CCONJ
ajst-5638	38	80	the	the	DET
ajst-5638	38	81	pbe	pbe	PROPN
ajst-5638	38	82	functional	functional	NOUN
ajst-5638	38	83	under	under	ADP
ajst-5638	38	84	the	the	DET
ajst-5638	38	85	generalized	generalized	ADJ
ajst-5638	38	86	gradient	gradient	NOUN
ajst-5638	38	87	approximation	approximation	NOUN
ajst-5638	38	88	(	(	PUNCT
ajst-5638	38	89	gga).all	gga).all	X
ajst-5638	38	90	of	of	ADP
ajst-5638	38	91	these	these	DET
ajst-5638	38	92	calculations	calculation	NOUN
ajst-5638	38	93	were	be	AUX
ajst-5638	38	94	done	do	VERB
ajst-5638	38	95	at	at	ADP
ajst-5638	38	96	0gpa	0gpa	NOUN
ajst-5638	38	97	,	,	PUNCT
ajst-5638	38	98	and	and	CCONJ
ajst-5638	38	99	they	they	PRON
ajst-5638	38	100	showed	show	VERB
ajst-5638	38	101	that	that	SCONJ
ajst-5638	38	102	we	we	PRON
ajst-5638	38	103	could	could	AUX
ajst-5638	38	104	adjust	adjust	VERB
ajst-5638	38	105	the	the	DET
ajst-5638	38	106	hardness	hardness	NOUN
ajst-5638	38	107	of	of	ADP
ajst-5638	38	108	ir	ir	NOUN
ajst-5638	38	109	-	-	ADJ
ajst-5638	38	110	c	c	NOUN
ajst-5638	38	111	-	-	PUNCT
ajst-5638	38	112	n	n	NOUN
ajst-5638	38	113	compounds	compound	NOUN
ajst-5638	38	114	by	by	ADP
ajst-5638	38	115	changing	change	VERB
ajst-5638	38	116	the	the	DET
ajst-5638	38	117	ratio	ratio	NOUN
ajst-5638	38	118	of	of	ADP
ajst-5638	38	119	carbon	carbon	NOUN
ajst-5638	38	120	and	and	CCONJ
ajst-5638	38	121	nitrogen	nitrogen	NOUN
ajst-5638	38	122	atoms	atom	NOUN
ajst-5638	38	123	in	in	ADP
ajst-5638	38	124	different	different	ADJ
ajst-5638	38	125	spatial	spatial	ADJ
ajst-5638	38	126	systems	system	NOUN
ajst-5638	38	127	,	,	PUNCT
ajst-5638	38	128	with	with	ADP
ajst-5638	38	129	the	the	DET
ajst-5638	38	130	regulation	regulation	NOUN
ajst-5638	38	131	b	b	NOUN
ajst-5638	38	132	/	/	SYM
ajst-5638	38	133	g	g	NOUN
ajst-5638	38	134	of	of	ADP
ajst-5638	38	135	the	the	DET
ajst-5638	38	136	ratio	ratio	NOUN
ajst-5638	38	137	changing	change	VERB
ajst-5638	38	138	continuously	continuously	ADV
ajst-5638	38	139	,	,	PUNCT
ajst-5638	38	140	the	the	DET
ajst-5638	38	141	ratio	ratio	NOUN
ajst-5638	38	142	is	be	AUX
ajst-5638	38	143	less	less	ADJ
ajst-5638	38	144	than	than	ADP
ajst-5638	38	145	1.75	1.75	NUM
ajst-5638	38	146	,	,	PUNCT
ajst-5638	38	147	which	which	PRON
ajst-5638	38	148	makes	make	VERB
ajst-5638	38	149	the	the	DET
ajst-5638	38	150	compound	compound	NOUN
ajst-5638	38	151	gradually	gradually	ADV
ajst-5638	38	152	become	become	VERB
ajst-5638	38	153	brittle	brittle	ADJ
ajst-5638	38	154	material	material	NOUN
ajst-5638	38	155	from	from	ADP
ajst-5638	38	156	the	the	DET
ajst-5638	38	157	original	original	ADJ
ajst-5638	38	158	malleable	malleable	ADJ
ajst-5638	38	159	material	material	NOUN
ajst-5638	38	160	.	.	PUNCT
ajst-5638	39	1	it	it	PRON
ajst-5638	39	2	is	be	AUX
ajst-5638	39	3	hoped	hope	VERB
ajst-5638	39	4	that	that	SCONJ
ajst-5638	39	5	the	the	DET
ajst-5638	39	6	theoretical	theoretical	ADJ
ajst-5638	39	7	research	research	NOUN
ajst-5638	39	8	in	in	ADP
ajst-5638	39	9	this	this	DET
ajst-5638	39	10	paper	paper	NOUN
ajst-5638	39	11	can	can	AUX
ajst-5638	39	12	play	play	VERB
ajst-5638	39	13	a	a	DET
ajst-5638	39	14	certain	certain	ADJ
ajst-5638	39	15	reference	reference	NOUN
ajst-5638	39	16	role	role	NOUN
ajst-5638	39	17	for	for	ADP
ajst-5638	39	18	the	the	DET
ajst-5638	39	19	subsequent	subsequent	ADJ
ajst-5638	39	20	regulation	regulation	NOUN
ajst-5638	39	21	research	research	NOUN
ajst-5638	39	22	of	of	ADP
ajst-5638	39	23	material	material	ADJ
ajst-5638	39	24	hardness	hardness	NOUN
ajst-5638	39	25	.	.	PUNCT
ajst-5638	40	1	acknowledgment	acknowledgment	NOUN
ajst-5638	40	2	this	this	DET
ajst-5638	40	3	work	work	NOUN
ajst-5638	40	4	is	be	AUX
ajst-5638	40	5	supported	support	VERB
ajst-5638	40	6	by	by	ADP
ajst-5638	40	7	the	the	DET
ajst-5638	40	8	outstanding	outstanding	ADJ
ajst-5638	40	9	student	student	NOUN
ajst-5638	40	10	project	project	NOUN
ajst-5638	40	11	of	of	ADP
ajst-5638	40	12	the	the	DET
ajst-5638	40	13	central	central	ADJ
ajst-5638	40	14	universities	university	NOUN
ajst-5638	40	15	basic	basic	ADJ
ajst-5638	40	16	scientific	scientific	ADJ
ajst-5638	40	17	research	research	NOUN
ajst-5638	40	18	operational	operational	ADJ
ajst-5638	40	19	fund	fund	NOUN
ajst-5638	40	20	of	of	ADP
ajst-5638	40	21	southwest	southwest	PROPN
ajst-5638	40	22	minzu	minzu	PROPN
ajst-5638	40	23	university	university	PROPN
ajst-5638	40	24	(	(	PUNCT
ajst-5638	40	25	2021nyyxs108	2021nyyxs108	NUM
ajst-5638	40	26	)	)	PUNCT
ajst-5638	40	27	.	.	PUNCT
ajst-5638	41	1	references	reference	NOUN
ajst-5638	41	2	[	[	X
ajst-5638	41	3	1	1	NUM
ajst-5638	41	4	]	]	X
ajst-5638	41	5	shamp	shamp	NOUN
ajst-5638	41	6	a	a	X
ajst-5638	41	7	,	,	PUNCT
ajst-5638	41	8	terpstra	terpstra	PROPN
ajst-5638	41	9	t	t	PROPN
ajst-5638	41	10	,	,	PUNCT
ajst-5638	41	11	bi	bi	PROPN
ajst-5638	41	12	t	t	PROPN
ajst-5638	41	13	,	,	PUNCT
ajst-5638	41	14	et	et	PROPN
ajst-5638	41	15	al	al	PROPN
ajst-5638	41	16	.	.	PUNCT
ajst-5638	41	17	decomposition	decomposition	NOUN
ajst-5638	41	18	products	product	NOUN
ajst-5638	41	19	of	of	ADP
ajst-5638	41	20	phosphine	phosphine	NOUN
ajst-5638	41	21	under	under	ADP
ajst-5638	41	22	pressure	pressure	NOUN
ajst-5638	41	23	:	:	PUNCT
ajst-5638	41	24	ph2	ph2	NOUN
ajst-5638	41	25	stable	stable	ADJ
ajst-5638	41	26	and	and	CCONJ
ajst-5638	41	27	superconducting?[j	superconducting?[j	ADJ
ajst-5638	41	28	]	]	PUNCT
ajst-5638	41	29	.	.	PUNCT
ajst-5638	42	1	journal	journal	PROPN
ajst-5638	42	2	of	of	ADP
ajst-5638	42	3	the	the	DET
ajst-5638	42	4	american	american	PROPN
ajst-5638	42	5	chemical	chemical	PROPN
ajst-5638	42	6	society	society	PROPN
ajst-5638	42	7	,	,	PUNCT
ajst-5638	42	8	2016	2016	NUM
ajst-5638	42	9	,	,	PUNCT
ajst-5638	42	10	138(6	138(6	NUM
ajst-5638	42	11	):	):	PUNCT
ajst-5638	42	12	1884	1884	NUM
ajst-5638	42	13	-	-	SYM
ajst-5638	42	14	1892	1892	NUM
ajst-5638	42	15	.	.	PUNCT
ajst-5638	43	1	[	[	X
ajst-5638	43	2	2	2	NUM
ajst-5638	43	3	]	]	PUNCT
ajst-5638	43	4	einaga	einaga	NOUN
ajst-5638	43	5	m	m	PROPN
ajst-5638	43	6	,	,	PUNCT
ajst-5638	43	7	sakata	sakata	PROPN
ajst-5638	43	8	m	m	PROPN
ajst-5638	43	9	,	,	PUNCT
ajst-5638	43	10	ishikawa	ishikawa	PROPN
ajst-5638	43	11	t	t	PROPN
ajst-5638	43	12	,	,	PUNCT
ajst-5638	43	13	et	et	PROPN
ajst-5638	43	14	al	al	PROPN
ajst-5638	43	15	.	.	PUNCT
ajst-5638	43	16	crystal	crystal	NOUN
ajst-5638	43	17	structure	structure	NOUN
ajst-5638	43	18	of	of	ADP
ajst-5638	43	19	the	the	DET
ajst-5638	43	20	superconducting	superconducte	VERB
ajst-5638	43	21	phase	phase	NOUN
ajst-5638	43	22	of	of	ADP
ajst-5638	43	23	sulfur	sulfur	NOUN
ajst-5638	43	24	hydride[j	hydride[j	NOUN
ajst-5638	43	25	]	]	PUNCT
ajst-5638	43	26	.	.	PUNCT
ajst-5638	44	1	nature	nature	PROPN
ajst-5638	44	2	physics	physics	PROPN
ajst-5638	44	3	,	,	PUNCT
ajst-5638	44	4	2016	2016	NUM
ajst-5638	44	5	,	,	PUNCT
ajst-5638	44	6	12(9	12(9	NUM
ajst-5638	44	7	):	):	PUNCT
ajst-5638	44	8	835	835	NUM
ajst-5638	44	9	-	-	SYM
ajst-5638	44	10	838	838	NUM
ajst-5638	44	11	.	.	PUNCT
ajst-5638	45	1	[	[	X
ajst-5638	45	2	3	3	X
ajst-5638	45	3	]	]	X
ajst-5638	45	4	liu	liu	PROPN
ajst-5638	45	5	h	h	PROPN
ajst-5638	45	6	,	,	PUNCT
ajst-5638	45	7	li	li	PROPN
ajst-5638	45	8	y	y	PROPN
ajst-5638	45	9	,	,	PUNCT
ajst-5638	45	10	gao	gao	PROPN
ajst-5638	45	11	g	g	PROPN
ajst-5638	45	12	,	,	PUNCT
ajst-5638	45	13	et	et	PROPN
ajst-5638	45	14	al	al	PROPN
ajst-5638	45	15	.	.	PUNCT
ajst-5638	45	16	crystal	crystal	NOUN
ajst-5638	45	17	structure	structure	NOUN
ajst-5638	45	18	and	and	CCONJ
ajst-5638	45	19	superconductivity	superconductivity	NOUN
ajst-5638	45	20	of	of	ADP
ajst-5638	45	21	ph3	ph3	PROPN
ajst-5638	45	22	at	at	ADP
ajst-5638	45	23	high	high	ADJ
ajst-5638	45	24	pressures[j	pressures[j	PROPN
ajst-5638	45	25	]	]	PUNCT
ajst-5638	45	26	.	.	PUNCT
ajst-5638	46	1	the	the	DET
ajst-5638	46	2	journal	journal	NOUN
ajst-5638	46	3	of	of	ADP
ajst-5638	46	4	physical	physical	ADJ
ajst-5638	46	5	chemistry	chemistry	NOUN
ajst-5638	46	6	c	c	NOUN
ajst-5638	46	7	,	,	PUNCT
ajst-5638	46	8	2016	2016	NUM
ajst-5638	46	9	,	,	PUNCT
ajst-5638	46	10	120(6	120(6	NUM
ajst-5638	46	11	):	):	PUNCT
ajst-5638	46	12	3458	3458	NUM
ajst-5638	46	13	-	-	SYM
ajst-5638	46	14	3461	3461	NUM
ajst-5638	46	15	.	.	PUNCT
ajst-5638	47	1	[	[	X
ajst-5638	47	2	4	4	NUM
ajst-5638	47	3	]	]	X
ajst-5638	47	4	abe	abe	PROPN
ajst-5638	47	5	k.	k.	PROPN
ajst-5638	47	6	hydrogen	hydrogen	PROPN
ajst-5638	47	7	-	-	PUNCT
ajst-5638	47	8	rich	rich	ADJ
ajst-5638	47	9	scandium	scandium	NOUN
ajst-5638	47	10	compounds	compound	NOUN
ajst-5638	47	11	at	at	ADP
ajst-5638	47	12	high	high	ADJ
ajst-5638	47	13	pressures[j	pressures[j	PROPN
ajst-5638	47	14	]	]	PUNCT
ajst-5638	47	15	.	.	PUNCT
ajst-5638	48	1	physical	physical	PROPN
ajst-5638	48	2	review	review	PROPN
ajst-5638	48	3	b	b	PROPN
ajst-5638	48	4	,	,	PUNCT
ajst-5638	48	5	2017	2017	NUM
ajst-5638	48	6	,	,	PUNCT
ajst-5638	48	7	96(14	96(14	NUM
ajst-5638	48	8	):	):	PUNCT
ajst-5638	48	9	144108	144108	NUM
ajst-5638	48	10	.	.	PUNCT
ajst-5638	49	1	[	[	X
ajst-5638	49	2	5	5	NUM
ajst-5638	49	3	]	]	X
ajst-5638	49	4	qian	qian	PROPN
ajst-5638	49	5	s	s	PROPN
ajst-5638	49	6	,	,	PUNCT
ajst-5638	49	7	sheng	sheng	PROPN
ajst-5638	49	8	x	x	PROPN
ajst-5638	49	9	,	,	PUNCT
ajst-5638	49	10	yan	yan	PROPN
ajst-5638	49	11	x	x	X
ajst-5638	49	12	,	,	PUNCT
ajst-5638	49	13	et	et	PROPN
ajst-5638	49	14	al	al	PROPN
ajst-5638	49	15	.	.	PROPN
ajst-5638	50	1	theoretical	theoretical	ADJ
ajst-5638	50	2	study	study	NOUN
ajst-5638	50	3	of	of	ADP
ajst-5638	50	4	stability	stability	NOUN
ajst-5638	50	5	and	and	CCONJ
ajst-5638	50	6	superconductivity	superconductivity	NOUN
ajst-5638	50	7	of	of	ADP
ajst-5638	50	8	schn	schn	NOUN
ajst-5638	50	9	(	(	PUNCT
ajst-5638	50	10	n=	n=	ADJ
ajst-5638	50	11	4–8	4–8	NOUN
ajst-5638	50	12	)	)	PUNCT
ajst-5638	50	13	at	at	ADP
ajst-5638	50	14	high	high	ADJ
ajst-5638	50	15	pressure[j	pressure[j	NOUN
ajst-5638	50	16	]	]	PUNCT
ajst-5638	50	17	.	.	PUNCT
ajst-5638	51	1	physical	physical	PROPN
ajst-5638	51	2	review	review	PROPN
ajst-5638	51	3	b	b	PROPN
ajst-5638	51	4	,	,	PUNCT
ajst-5638	51	5	2017	2017	NUM
ajst-5638	51	6	,	,	PUNCT
ajst-5638	51	7	96(9	96(9	NUM
ajst-5638	51	8	):	):	PUNCT
ajst-5638	51	9	094513	094513	NUM
ajst-5638	51	10	.	.	PUNCT
ajst-5638	52	1	[	[	X
ajst-5638	52	2	6	6	NUM
ajst-5638	52	3	]	]	X
ajst-5638	52	4	peng	peng	PROPN
ajst-5638	52	5	f	f	PROPN
ajst-5638	52	6	,	,	PUNCT
ajst-5638	52	7	sun	sun	PROPN
ajst-5638	52	8	y	y	PROPN
ajst-5638	52	9	,	,	PUNCT
ajst-5638	52	10	pickard	pickard	PROPN
ajst-5638	52	11	c	c	PROPN
ajst-5638	52	12	j	j	PROPN
ajst-5638	52	13	,	,	PUNCT
ajst-5638	52	14	et	et	PROPN
ajst-5638	52	15	al	al	PROPN
ajst-5638	52	16	.	.	PUNCT
ajst-5638	52	17	hydrogen	hydrogen	NOUN
ajst-5638	52	18	clathrate	clathrate	NOUN
ajst-5638	52	19	structures	structure	NOUN
ajst-5638	52	20	in	in	ADP
ajst-5638	52	21	rare	rare	ADJ
ajst-5638	52	22	earth	earth	NOUN
ajst-5638	52	23	hydrides	hydride	NOUN
ajst-5638	52	24	at	at	ADP
ajst-5638	52	25	high	high	ADJ
ajst-5638	52	26	pressures	pressure	NOUN
ajst-5638	52	27	:	:	PUNCT
ajst-5638	52	28	possible	possible	ADJ
ajst-5638	52	29	route	route	NOUN
ajst-5638	52	30	to	to	PART
ajst-5638	52	31	roomtemperature	roomtemperature	VERB
ajst-5638	52	32	superconductivity[j	superconductivity[j	NOUN
ajst-5638	52	33	]	]	PUNCT
ajst-5638	52	34	.	.	PUNCT
ajst-5638	53	1	physical	physical	ADJ
ajst-5638	53	2	review	review	NOUN
ajst-5638	53	3	letters	letter	NOUN
ajst-5638	53	4	,	,	PUNCT
ajst-5638	53	5	2017	2017	NUM
ajst-5638	53	6	,	,	PUNCT
ajst-5638	53	7	119(10	119(10	NUM
ajst-5638	53	8	):	):	PUNCT
ajst-5638	53	9	107001	107001	NUM
ajst-5638	53	10	.	.	PUNCT
ajst-5638	54	1	[	[	X
ajst-5638	54	2	7	7	X
ajst-5638	54	3	]	]	X
ajst-5638	54	4	liu	liu	PROPN
ajst-5638	54	5	h	h	PROPN
ajst-5638	54	6	,	,	PUNCT
ajst-5638	54	7	naumov	naumov	PROPN
ajst-5638	55	1	i	i	PRON
ajst-5638	55	2	i	i	PROPN
ajst-5638	55	3	,	,	PUNCT
ajst-5638	55	4	hoffmann	hoffmann	PROPN
ajst-5638	55	5	r	r	PROPN
ajst-5638	55	6	,	,	PUNCT
ajst-5638	55	7	et	et	PROPN
ajst-5638	55	8	al	al	PROPN
ajst-5638	55	9	.	.	PROPN
ajst-5638	56	1	potential	potential	ADJ
ajst-5638	56	2	high	high	ADJ
ajst-5638	56	3	-	-	PUNCT
ajst-5638	56	4	tc	tc	NOUN
ajst-5638	56	5	superconducting	superconducte	VERB
ajst-5638	56	6	lanthanum	lanthanum	NOUN
ajst-5638	56	7	and	and	CCONJ
ajst-5638	56	8	yttrium	yttrium	NOUN
ajst-5638	56	9	hydrides	hydride	NOUN
ajst-5638	56	10	at	at	ADP
ajst-5638	56	11	high	high	ADJ
ajst-5638	56	12	pressure[j	pressure[j	NOUN
ajst-5638	56	13	]	]	PUNCT
ajst-5638	56	14	.	.	PUNCT
ajst-5638	57	1	proceedings	proceeding	NOUN
ajst-5638	57	2	of	of	ADP
ajst-5638	57	3	the	the	DET
ajst-5638	57	4	national	national	PROPN
ajst-5638	57	5	academy	academy	PROPN
ajst-5638	57	6	of	of	ADP
ajst-5638	57	7	sciences	sciences	PROPN
ajst-5638	57	8	,	,	PUNCT
ajst-5638	57	9	2017	2017	NUM
ajst-5638	57	10	,	,	PUNCT
ajst-5638	57	11	114(27	114(27	NUM
ajst-5638	57	12	):	):	PUNCT
ajst-5638	57	13	6990	6990	NUM
ajst-5638	57	14	-	-	SYM
ajst-5638	57	15	6995	6995	NUM
ajst-5638	57	16	.	.	PUNCT
ajst-5638	58	1	[	[	X
ajst-5638	58	2	8	8	NUM
ajst-5638	58	3	]	]	PUNCT
ajst-5638	58	4	semenok	semenok	NOUN
ajst-5638	58	5	d	d	PROPN
ajst-5638	58	6	v	v	PROPN
ajst-5638	58	7	,	,	PUNCT
ajst-5638	58	8	kvashnin	kvashnin	ADJ
ajst-5638	58	9	a	a	DET
ajst-5638	58	10	g	g	NOUN
ajst-5638	58	11	,	,	PUNCT
ajst-5638	58	12	kruglov	kruglov	VERB
ajst-5638	58	13	i	i	PRON
ajst-5638	58	14	a	a	X
ajst-5638	58	15	,	,	PUNCT
ajst-5638	58	16	et	et	PROPN
ajst-5638	58	17	al	al	PROPN
ajst-5638	58	18	.	.	PUNCT
ajst-5638	58	19	actinium	actinium	NOUN
ajst-5638	58	20	hydrides	hydride	NOUN
ajst-5638	58	21	ach10	ach10	PROPN
ajst-5638	58	22	,	,	PUNCT
ajst-5638	58	23	ach12	ach12	PROPN
ajst-5638	58	24	,	,	PUNCT
ajst-5638	58	25	and	and	CCONJ
ajst-5638	58	26	ach16	ach16	PROPN
ajst-5638	58	27	as	as	ADP
ajst-5638	58	28	high	high	ADJ
ajst-5638	58	29	-	-	PUNCT
ajst-5638	58	30	temperature	temperature	NOUN
ajst-5638	58	31	conventional	conventional	ADJ
ajst-5638	58	32	superconductors[j	superconductors[j	NOUN
ajst-5638	58	33	]	]	PUNCT
ajst-5638	58	34	.	.	PUNCT
ajst-5638	59	1	the	the	DET
ajst-5638	59	2	journal	journal	PROPN
ajst-5638	59	3	of	of	ADP
ajst-5638	59	4	physical	physical	ADJ
ajst-5638	59	5	chemistry	chemistry	NOUN
ajst-5638	59	6	letters	letter	NOUN
ajst-5638	59	7	,	,	PUNCT
ajst-5638	59	8	2018	2018	NUM
ajst-5638	59	9	,	,	PUNCT
ajst-5638	59	10	9(8	9(8	NUM
ajst-5638	59	11	):	):	PUNCT
ajst-5638	59	12	1920	1920	NUM
ajst-5638	59	13	-	-	SYM
ajst-5638	59	14	1926	1926	NUM
ajst-5638	59	15	.	.	PUNCT
ajst-5638	60	1	[	[	X
ajst-5638	60	2	9	9	NUM
ajst-5638	60	3	]	]	X
ajst-5638	60	4	geballe	geballe	PROPN
ajst-5638	60	5	z	z	PROPN
ajst-5638	60	6	m	m	PROPN
ajst-5638	60	7	,	,	PUNCT
ajst-5638	60	8	liu	liu	PROPN
ajst-5638	60	9	h	h	PROPN
ajst-5638	60	10	,	,	PUNCT
ajst-5638	60	11	mishra	mishra	PROPN
ajst-5638	60	12	a	a	PROPN
ajst-5638	60	13	k	k	PROPN
ajst-5638	60	14	,	,	PUNCT
ajst-5638	60	15	et	et	PROPN
ajst-5638	60	16	al	al	PROPN
ajst-5638	60	17	.	.	PUNCT
ajst-5638	60	18	synthesis	synthesis	NOUN
ajst-5638	60	19	and	and	CCONJ
ajst-5638	60	20	stability	stability	NOUN
ajst-5638	60	21	of	of	ADP
ajst-5638	60	22	lanthanum	lanthanum	ADJ
ajst-5638	60	23	superhydrides[j	superhydrides[j	NOUN
ajst-5638	60	24	]	]	PUNCT
ajst-5638	60	25	.	.	PUNCT
ajst-5638	61	1	angewandte	angewandte	PROPN
ajst-5638	61	2	chemie	chemie	PROPN
ajst-5638	61	3	,	,	PUNCT
ajst-5638	61	4	2018	2018	NUM
ajst-5638	61	5	,	,	PUNCT
ajst-5638	61	6	130(3	130(3	NUM
ajst-5638	61	7	):	):	PUNCT
ajst-5638	61	8	696	696	NUM
ajst-5638	61	9	-	-	SYM
ajst-5638	61	10	700	700	NUM
ajst-5638	61	11	.	.	PUNCT
ajst-5638	62	1	[	[	X
ajst-5638	62	2	10	10	NUM
ajst-5638	62	3	]	]	X
ajst-5638	62	4	liu	liu	PROPN
ajst-5638	62	5	y	y	PROPN
ajst-5638	62	6	,	,	PUNCT
ajst-5638	62	7	duan	duan	PROPN
ajst-5638	62	8	d	d	PROPN
ajst-5638	62	9	,	,	PUNCT
ajst-5638	62	10	tian	tian	PROPN
ajst-5638	62	11	f	f	X
ajst-5638	62	12	,	,	PUNCT
ajst-5638	62	13	et	et	PROPN
ajst-5638	62	14	al	al	PROPN
ajst-5638	62	15	.	.	PROPN
ajst-5638	62	16	stability	stability	NOUN
ajst-5638	62	17	and	and	CCONJ
ajst-5638	62	18	properties	property	NOUN
ajst-5638	62	19	of	of	ADP
ajst-5638	62	20	the	the	DET
ajst-5638	62	21	ru	ru	NOUN
ajst-5638	62	22	–	–	PUNCT
ajst-5638	62	23	h	h	NOUN
ajst-5638	62	24	system	system	NOUN
ajst-5638	62	25	at	at	ADP
ajst-5638	62	26	high	high	ADJ
ajst-5638	62	27	pressure[j	pressure[j	NOUN
ajst-5638	62	28	]	]	PUNCT
ajst-5638	62	29	.	.	PUNCT
ajst-5638	63	1	physical	physical	ADJ
ajst-5638	63	2	chemistry	chemistry	NOUN
ajst-5638	63	3	chemical	chemical	PROPN
ajst-5638	63	4	physics	physics	PROPN
ajst-5638	63	5	,	,	PUNCT
ajst-5638	63	6	2016	2016	NUM
ajst-5638	63	7	,	,	PUNCT
ajst-5638	63	8	18(3	18(3	NUM
ajst-5638	63	9	):	):	PUNCT
ajst-5638	63	10	1516	1516	NUM
ajst-5638	63	11	-	-	SYM
ajst-5638	63	12	1520	1520	NUM
ajst-5638	63	13	.	.	PUNCT
ajst-5638	64	1	232	232	NUM
ajst-5638	65	1	[	[	X
ajst-5638	65	2	11	11	NUM
ajst-5638	65	3	]	]	X
ajst-5638	65	4	kuzovnikov	kuzovnikov	PROPN
ajst-5638	65	5	m	m	PROPN
ajst-5638	65	6	a	a	PRON
ajst-5638	65	7	,	,	PUNCT
ajst-5638	65	8	tkacz	tkacz	NOUN
ajst-5638	65	9	m.	m.	NOUN
ajst-5638	65	10	synthesis	synthesis	NOUN
ajst-5638	65	11	of	of	ADP
ajst-5638	65	12	ruthenium	ruthenium	NOUN
ajst-5638	65	13	hydride[j	hydride[j	NOUN
ajst-5638	65	14	]	]	PUNCT
ajst-5638	65	15	.	.	PUNCT
ajst-5638	66	1	physical	physical	PROPN
ajst-5638	66	2	review	review	PROPN
ajst-5638	66	3	b	b	PROPN
ajst-5638	66	4	,	,	PUNCT
ajst-5638	66	5	2016	2016	NUM
ajst-5638	66	6	,	,	PUNCT
ajst-5638	66	7	93(6	93(6	NOUN
ajst-5638	66	8	):	):	PUNCT
ajst-5638	66	9	064103	064103	NUM
ajst-5638	66	10	.	.	PUNCT
ajst-5638	67	1	[	[	X
ajst-5638	67	2	12	12	NUM
ajst-5638	67	3	]	]	X
ajst-5638	67	4	wang	wang	PROPN
ajst-5638	67	5	f	f	PROPN
ajst-5638	67	6	,	,	PUNCT
ajst-5638	67	7	gong	gong	PROPN
ajst-5638	67	8	h	h	PROPN
ajst-5638	67	9	r.	r.	PROPN
ajst-5638	67	10	first	first	PROPN
ajst-5638	67	11	principles	principle	NOUN
ajst-5638	67	12	study	study	NOUN
ajst-5638	67	13	of	of	ADP
ajst-5638	67	14	various	various	ADJ
ajst-5638	67	15	zr	zr	PROPN
ajst-5638	67	16	–	–	PUNCT
ajst-5638	67	17	h	h	NOUN
ajst-5638	67	18	phases	phase	NOUN
ajst-5638	67	19	with	with	ADP
ajst-5638	67	20	low	low	ADJ
ajst-5638	67	21	h	h	NOUN
ajst-5638	67	22	concentrations[j	concentrations[j	NOUN
ajst-5638	67	23	]	]	PUNCT
ajst-5638	67	24	.	.	PUNCT
ajst-5638	68	1	international	international	ADJ
ajst-5638	68	2	journal	journal	PROPN
ajst-5638	68	3	of	of	ADP
ajst-5638	68	4	hydrogen	hydrogen	NOUN
ajst-5638	68	5	energy	energy	NOUN
ajst-5638	68	6	,	,	PUNCT
ajst-5638	68	7	2012	2012	NUM
ajst-5638	68	8	,	,	PUNCT
ajst-5638	68	9	37(17	37(17	NUM
ajst-5638	68	10	):	):	PUNCT
ajst-5638	68	11	12393	12393	NUM
ajst-5638	68	12	-	-	SYM
ajst-5638	68	13	12401	12401	NUM
ajst-5638	68	14	.	.	PUNCT
ajst-5638	69	1	[	[	X
ajst-5638	69	2	13	13	NUM
ajst-5638	69	3	]	]	PUNCT
ajst-5638	69	4	flores	flore	NOUN
ajst-5638	69	5	-	-	PUNCT
ajst-5638	69	6	livas	livas	PROPN
ajst-5638	69	7	j	j	PROPN
ajst-5638	69	8	a	a	PROPN
ajst-5638	69	9	,	,	PUNCT
ajst-5638	69	10	amsler	amsler	PROPN
ajst-5638	69	11	m	m	PROPN
ajst-5638	69	12	,	,	PUNCT
ajst-5638	69	13	lenosky	lenosky	PROPN
ajst-5638	69	14	t	t	PROPN
ajst-5638	69	15	j	j	PROPN
ajst-5638	69	16	,	,	PUNCT
ajst-5638	69	17	et	et	PROPN
ajst-5638	69	18	al	al	PROPN
ajst-5638	69	19	.	.	PROPN
ajst-5638	69	20	high	high	ADJ
ajst-5638	69	21	-	-	PUNCT
ajst-5638	69	22	pressure	pressure	NOUN
ajst-5638	69	23	structures	structure	NOUN
ajst-5638	69	24	of	of	ADP
ajst-5638	69	25	disilane	disilane	NOUN
ajst-5638	69	26	and	and	CCONJ
ajst-5638	69	27	their	their	PRON
ajst-5638	69	28	superconducting	superconducte	VERB
ajst-5638	69	29	properties[j	properties[j	NOUN
ajst-5638	69	30	]	]	PUNCT
ajst-5638	69	31	.	.	PUNCT
ajst-5638	70	1	physical	physical	ADJ
ajst-5638	70	2	review	review	NOUN
ajst-5638	70	3	letters	letter	NOUN
ajst-5638	70	4	,	,	PUNCT
ajst-5638	70	5	2012	2012	NUM
ajst-5638	70	6	,	,	PUNCT
ajst-5638	70	7	108(11	108(11	NUM
ajst-5638	70	8	):	):	PUNCT
ajst-5638	70	9	117004	117004	NUM
ajst-5638	70	10	.	.	PUNCT
ajst-5638	71	1	[	[	X
ajst-5638	71	2	14	14	NUM
ajst-5638	71	3	]	]	PUNCT
ajst-5638	71	4	rau	rau	PROPN
ajst-5638	71	5	j	j	PROPN
ajst-5638	71	6	v	v	PROPN
ajst-5638	71	7	,	,	PUNCT
ajst-5638	71	8	latini	latini	PROPN
ajst-5638	71	9	a.	a.	NOUN
ajst-5638	71	10	new	new	PROPN
ajst-5638	71	11	hard	hard	ADJ
ajst-5638	71	12	and	and	CCONJ
ajst-5638	71	13	superhard	superhard	ADJ
ajst-5638	71	14	materials	material	NOUN
ajst-5638	71	15	:	:	PUNCT
ajst-5638	71	16	rhb1.1	rhb1.1	NOUN
ajst-5638	71	17	and	and	CCONJ
ajst-5638	71	18	irb1.35[j	irb1.35[j	PROPN
ajst-5638	71	19	]	]	PUNCT
ajst-5638	71	20	.	.	PUNCT
ajst-5638	72	1	chemistry	chemistry	NOUN
ajst-5638	72	2	of	of	ADP
ajst-5638	72	3	materials	material	NOUN
ajst-5638	72	4	,	,	PUNCT
ajst-5638	72	5	2009	2009	NUM
ajst-5638	72	6	,	,	PUNCT
ajst-5638	72	7	21(8	21(8	NUM
ajst-5638	72	8	):	):	PUNCT
ajst-5638	72	9	14071409	14071409	NUM
ajst-5638	72	10	.	.	PUNCT
ajst-5638	73	1	[	[	X
ajst-5638	73	2	15	15	NUM
ajst-5638	73	3	]	]	X
ajst-5638	73	4	li	li	PROPN
ajst-5638	73	5	x	x	PROPN
ajst-5638	73	6	,	,	PUNCT
ajst-5638	73	7	du	du	PROPN
ajst-5638	73	8	j.	j.	PROPN
ajst-5638	73	9	unexpected	unexpected	ADJ
ajst-5638	73	10	superhard	superhard	NOUN
ajst-5638	73	11	phases	phase	NOUN
ajst-5638	73	12	of	of	ADP
ajst-5638	73	13	niobium	niobium	NOUN
ajst-5638	73	14	triborides	triboride	NOUN
ajst-5638	73	15	:	:	PUNCT
ajst-5638	73	16	first	first	ADJ
ajst-5638	73	17	-	-	PUNCT
ajst-5638	73	18	principles	principle	NOUN
ajst-5638	73	19	calculations[j	calculations[j	NOUN
ajst-5638	73	20	]	]	PUNCT
ajst-5638	73	21	.	.	PUNCT
ajst-5638	74	1	rsc	rsc	PROPN
ajst-5638	74	2	advances	advance	NOUN
ajst-5638	74	3	,	,	PUNCT
ajst-5638	74	4	2016	2016	NUM
ajst-5638	74	5	,	,	PUNCT
ajst-5638	74	6	6(54	6(54	NUM
ajst-5638	74	7	):	):	PUNCT
ajst-5638	74	8	49214	49214	NUM
ajst-5638	74	9	-	-	SYM
ajst-5638	74	10	49220	49220	NUM
ajst-5638	74	11	.	.	PUNCT
ajst-5638	75	1	[	[	X
ajst-5638	75	2	16	16	NUM
ajst-5638	75	3	]	]	X
ajst-5638	75	4	wu	wu	PROPN
ajst-5638	75	5	z	z	PROPN
ajst-5638	75	6	,	,	PUNCT
ajst-5638	75	7	zhao	zhao	PROPN
ajst-5638	75	8	e	e	PROPN
ajst-5638	75	9	,	,	PUNCT
ajst-5638	75	10	xiang	xiang	PROPN
ajst-5638	75	11	h	h	PROPN
ajst-5638	75	12	,	,	PUNCT
ajst-5638	75	13	et	et	PROPN
ajst-5638	75	14	al	al	PROPN
ajst-5638	75	15	.	.	PUNCT
ajst-5638	75	16	crystal	crystal	NOUN
ajst-5638	75	17	structures	structure	NOUN
ajst-5638	75	18	and	and	CCONJ
ajst-5638	75	19	elastic	elastic	ADJ
ajst-5638	75	20	properties	property	NOUN
ajst-5638	75	21	of	of	ADP
ajst-5638	75	22	superhard	superhard	NOUN
ajst-5638	75	23	irn2	irn2	NOUN
ajst-5638	75	24	and	and	CCONJ
ajst-5638	75	25	irn3	irn3	VERB
ajst-5638	75	26	from	from	ADP
ajst-5638	75	27	first	first	ADJ
ajst-5638	75	28	principles[j	principles[j	PROPN
ajst-5638	75	29	]	]	PUNCT
ajst-5638	75	30	.	.	PUNCT
ajst-5638	76	1	physical	physical	PROPN
ajst-5638	76	2	review	review	PROPN
ajst-5638	76	3	b	b	PROPN
ajst-5638	76	4	,	,	PUNCT
ajst-5638	76	5	2007	2007	NUM
ajst-5638	76	6	,	,	PUNCT
ajst-5638	76	7	76(5	76(5	NUM
ajst-5638	76	8	):	):	PUNCT
ajst-5638	76	9	054115	054115	NUM
ajst-5638	76	10	.	.	PUNCT
ajst-5638	77	1	[	[	X
ajst-5638	77	2	17	17	NUM
ajst-5638	77	3	]	]	X
ajst-5638	77	4	patil	patil	PROPN
ajst-5638	77	5	s	s	PART
ajst-5638	77	6	k	k	PROPN
ajst-5638	77	7	r	r	PROPN
ajst-5638	77	8	,	,	PUNCT
ajst-5638	77	9	mangale	mangale	NOUN
ajst-5638	77	10	n	n	PROPN
ajst-5638	77	11	s	s	PROPN
ajst-5638	77	12	,	,	PUNCT
ajst-5638	77	13	khare	khare	PROPN
ajst-5638	77	14	s	s	PROPN
ajst-5638	77	15	v	v	NOUN
ajst-5638	77	16	,	,	PUNCT
ajst-5638	77	17	et	et	PROPN
ajst-5638	77	18	al	al	PROPN
ajst-5638	77	19	.	.	PUNCT
ajst-5638	78	1	super	super	PROPN
ajst-5638	78	2	hard	hard	ADJ
ajst-5638	78	3	cubic	cubic	ADJ
ajst-5638	78	4	phases	phase	NOUN
ajst-5638	78	5	of	of	ADP
ajst-5638	78	6	period	period	NOUN
ajst-5638	78	7	vi	vi	PROPN
ajst-5638	78	8	transition	transition	NOUN
ajst-5638	78	9	metal	metal	NOUN
ajst-5638	78	10	nitrides	nitride	NOUN
ajst-5638	78	11	:	:	PUNCT
ajst-5638	78	12	first	first	ADJ
ajst-5638	78	13	principles	principle	NOUN
ajst-5638	78	14	investigation[j	investigation[j	ADV
ajst-5638	78	15	]	]	X
ajst-5638	78	16	.	.	PUNCT
ajst-5638	79	1	thin	thin	ADJ
ajst-5638	79	2	solid	solid	ADJ
ajst-5638	79	3	films	film	NOUN
ajst-5638	79	4	,	,	PUNCT
ajst-5638	79	5	2008	2008	NUM
ajst-5638	79	6	,	,	PUNCT
ajst-5638	79	7	517(2	517(2	NUM
ajst-5638	79	8	):	):	PUNCT
ajst-5638	79	9	824	824	NUM
ajst-5638	79	10	-	-	SYM
ajst-5638	79	11	827	827	NUM
ajst-5638	79	12	.	.	PUNCT
ajst-5638	80	1	[	[	X
ajst-5638	80	2	18	18	NUM
ajst-5638	80	3	]	]	PUNCT
ajst-5638	80	4	perdew	perdew	NOUN
ajst-5638	80	5	j	j	PROPN
ajst-5638	80	6	p	p	PROPN
ajst-5638	80	7	,	,	PUNCT
ajst-5638	80	8	chevary	chevary	ADJ
ajst-5638	80	9	j	j	PROPN
ajst-5638	80	10	a	a	PROPN
ajst-5638	80	11	,	,	PUNCT
ajst-5638	80	12	vosko	vosko	PROPN
ajst-5638	80	13	s	s	PROPN
ajst-5638	80	14	h	h	NOUN
ajst-5638	80	15	,	,	PUNCT
ajst-5638	80	16	et	et	PROPN
ajst-5638	80	17	al	al	PROPN
ajst-5638	80	18	.	.	PROPN
ajst-5638	80	19	atoms	atom	NOUN
ajst-5638	80	20	,	,	PUNCT
ajst-5638	80	21	molecules	molecule	NOUN
ajst-5638	80	22	,	,	PUNCT
ajst-5638	80	23	solids	solid	NOUN
ajst-5638	80	24	,	,	PUNCT
ajst-5638	80	25	and	and	CCONJ
ajst-5638	80	26	surfaces	surface	NOUN
ajst-5638	80	27	:	:	PUNCT
ajst-5638	80	28	applications	application	NOUN
ajst-5638	80	29	of	of	ADP
ajst-5638	80	30	the	the	DET
ajst-5638	80	31	generalized	generalize	VERB
ajst-5638	80	32	gradient	gradient	NOUN
ajst-5638	80	33	approximation	approximation	NOUN
ajst-5638	80	34	for	for	ADP
ajst-5638	80	35	exchange	exchange	NOUN
ajst-5638	80	36	and	and	CCONJ
ajst-5638	80	37	correlation	correlation	NOUN
ajst-5638	80	38	[	[	X
ajst-5638	80	39	j	j	X
ajst-5638	80	40	]	]	X
ajst-5638	80	41	.	.	PUNCT
ajst-5638	81	1	physical	physical	PROPN
ajst-5638	81	2	review	review	PROPN
ajst-5638	81	3	b	b	PROPN
ajst-5638	81	4	,	,	PUNCT
ajst-5638	81	5	1992	1992	NUM
ajst-5638	81	6	,	,	PUNCT
ajst-5638	81	7	46(11	46(11	NUM
ajst-5638	81	8	):	):	PUNCT
ajst-5638	81	9	6671	6671	NUM
ajst-5638	81	10	-	-	SYM
ajst-5638	81	11	6687	6687	NUM
ajst-5638	81	12	.	.	PUNCT
ajst-5638	82	1	[	[	X
ajst-5638	82	2	19	19	NUM
ajst-5638	82	3	]	]	SYM
ajst-5638	82	4	perdew	perdew	PROPN
ajst-5638	82	5	,	,	PUNCT
ajst-5638	82	6	burke	burke	PROPN
ajst-5638	82	7	,	,	PUNCT
ajst-5638	82	8	ernzerhof	ernzerhof	NOUN
ajst-5638	82	9	.	.	PUNCT
ajst-5638	83	1	generalized	generalize	VERB
ajst-5638	83	2	gradient	gradient	NOUN
ajst-5638	83	3	approximation	approximation	NOUN
ajst-5638	83	4	made	make	VERB
ajst-5638	83	5	simple	simple	ADJ
ajst-5638	83	6	[	[	X
ajst-5638	83	7	j	j	X
ajst-5638	83	8	]	]	X
ajst-5638	83	9	.	.	PUNCT
ajst-5638	84	1	physical	physical	ADJ
ajst-5638	84	2	review	review	NOUN
ajst-5638	84	3	letters	letter	NOUN
ajst-5638	84	4	,	,	PUNCT
ajst-5638	84	5	1996	1996	NUM
ajst-5638	84	6	,	,	PUNCT
ajst-5638	84	7	77(18	77(18	NUM
ajst-5638	84	8	):	):	PUNCT
ajst-5638	84	9	3865	3865	NUM
ajst-5638	84	10	-	-	SYM
ajst-5638	84	11	3868	3868	NUM
ajst-5638	84	12	.	.	PUNCT
ajst-5638	85	1	[	[	X
ajst-5638	85	2	20	20	NUM
ajst-5638	85	3	]	]	PUNCT
ajst-5638	85	4	yan	yan	PROPN
ajst-5638	86	1	q	q	PROPN
ajst-5638	86	2	,	,	PUNCT
ajst-5638	86	3	wang	wang	PROPN
ajst-5638	86	4	y	y	PROPN
ajst-5638	86	5	x	x	PROPN
ajst-5638	86	6	,	,	PUNCT
ajst-5638	86	7	wang	wang	PROPN
ajst-5638	86	8	b	b	PROPN
ajst-5638	86	9	,	,	PUNCT
ajst-5638	86	10	et	et	PROPN
ajst-5638	86	11	al	al	PROPN
ajst-5638	86	12	.	.	PUNCT
ajst-5638	87	1	the	the	DET
ajst-5638	87	2	ground	ground	NOUN
ajst-5638	87	3	-	-	PUNCT
ajst-5638	87	4	state	state	NOUN
ajst-5638	87	5	structure	structure	NOUN
ajst-5638	87	6	and	and	CCONJ
ajst-5638	87	7	physical	physical	ADJ
ajst-5638	87	8	properties	property	NOUN
ajst-5638	87	9	of	of	ADP
ajst-5638	87	10	reb3	reb3	NOUN
ajst-5638	87	11	and	and	CCONJ
ajst-5638	87	12	irb3	irb3	PROPN
ajst-5638	87	13	predicted	predict	VERB
ajst-5638	87	14	from	from	ADP
ajst-5638	87	15	first	first	ADJ
ajst-5638	87	16	principles[j	principles[j	PROPN
ajst-5638	87	17	]	]	PUNCT
ajst-5638	87	18	.	.	PUNCT
ajst-5638	88	1	rsc	rsc	PROPN
ajst-5638	88	2	advances	advance	NOUN
ajst-5638	88	3	,	,	PUNCT
ajst-5638	88	4	2015	2015	NUM
ajst-5638	88	5	,	,	PUNCT
ajst-5638	88	6	5(33	5(33	NUM
ajst-5638	88	7	):	):	PUNCT
ajst-5638	88	8	25919	25919	NUM
ajst-5638	88	9	-	-	SYM
ajst-5638	88	10	25928	25928	NUM
ajst-5638	88	11	.	.	PUNCT
ajst-5638	89	1	[	[	X
ajst-5638	89	2	21	21	NUM
ajst-5638	89	3	]	]	X
ajst-5638	89	4	zurek	zurek	PROPN
ajst-5638	89	5	e.	e.	PROPN
ajst-5638	89	6	hydrides	hydride	NOUN
ajst-5638	89	7	of	of	ADP
ajst-5638	89	8	the	the	DET
ajst-5638	89	9	alkali	alkali	ADJ
ajst-5638	89	10	metals	metal	NOUN
ajst-5638	89	11	and	and	CCONJ
ajst-5638	89	12	alkaline	alkaline	NOUN
ajst-5638	89	13	earth	earth	NOUN
ajst-5638	89	14	metals	metal	NOUN
ajst-5638	89	15	under	under	ADP
ajst-5638	89	16	pressure[j	pressure[j	NOUN
ajst-5638	89	17	]	]	PUNCT
ajst-5638	89	18	.	.	PUNCT
ajst-5638	90	1	comments	comment	NOUN
ajst-5638	90	2	on	on	ADP
ajst-5638	90	3	inorganic	inorganic	ADJ
ajst-5638	90	4	chemistry	chemistry	NOUN
ajst-5638	90	5	,	,	PUNCT
ajst-5638	90	6	2017	2017	NUM
ajst-5638	90	7	,	,	PUNCT
ajst-5638	90	8	37(2	37(2	PRON
ajst-5638	90	9	):	):	PUNCT
ajst-5638	90	10	78	78	NUM
ajst-5638	90	11	-	-	SYM
ajst-5638	90	12	98	98	NUM
ajst-5638	90	13	.	.	PUNCT
ajst-5638	91	1	[	[	X
ajst-5638	91	2	22	22	NUM
ajst-5638	91	3	]	]	X
ajst-5638	91	4	shamp	shamp	NOUN
ajst-5638	91	5	a	a	PRON
ajst-5638	91	6	,	,	PUNCT
ajst-5638	91	7	zurek	zurek	PROPN
ajst-5638	91	8	e.	e.	PROPN
ajst-5638	91	9	superconductivity	superconductivity	PROPN
ajst-5638	91	10	in	in	ADP
ajst-5638	91	11	hydrides	hydride	NOUN
ajst-5638	91	12	doped	dope	VERB
ajst-5638	91	13	with	with	ADP
ajst-5638	91	14	main	main	ADJ
ajst-5638	91	15	group	group	NOUN
ajst-5638	91	16	elements	element	NOUN
ajst-5638	91	17	under	under	ADP
ajst-5638	91	18	pressure[j	pressure[j	NOUN
ajst-5638	91	19	]	]	PUNCT
ajst-5638	91	20	.	.	PUNCT
ajst-5638	92	1	novel	novel	ADJ
ajst-5638	92	2	superconducting	superconducte	VERB
ajst-5638	92	3	materials	material	NOUN
ajst-5638	92	4	,	,	PUNCT
ajst-5638	92	5	2017	2017	NUM
ajst-5638	92	6	,	,	PUNCT
ajst-5638	92	7	3(1	3(1	NUM
ajst-5638	92	8	):	):	PUNCT
ajst-5638	92	9	14	14	NUM
ajst-5638	92	10	-	-	SYM
ajst-5638	92	11	22	22	NUM
ajst-5638	92	12	.	.	PUNCT
ajst-5638	93	1	[	[	X
ajst-5638	93	2	23	23	NUM
ajst-5638	93	3	]	]	X
ajst-5638	93	4	zhang	zhang	PROPN
ajst-5638	93	5	l	l	PROPN
ajst-5638	93	6	,	,	PUNCT
ajst-5638	93	7	wang	wang	PROPN
ajst-5638	93	8	y	y	PROPN
ajst-5638	93	9	,	,	PUNCT
ajst-5638	93	10	lv	lv	PROPN
ajst-5638	93	11	j	j	PROPN
ajst-5638	93	12	,	,	PUNCT
ajst-5638	93	13	et	et	PROPN
ajst-5638	93	14	al	al	PROPN
ajst-5638	93	15	.	.	PUNCT
ajst-5638	93	16	materials	material	NOUN
ajst-5638	93	17	discovery	discovery	NOUN
ajst-5638	93	18	at	at	ADP
ajst-5638	93	19	high	high	ADJ
ajst-5638	93	20	pressures[j	pressures[j	PROPN
ajst-5638	93	21	]	]	PUNCT
ajst-5638	93	22	.	.	PUNCT
ajst-5638	94	1	nature	nature	NOUN
ajst-5638	94	2	reviews	review	VERB
ajst-5638	94	3	materials	material	NOUN
ajst-5638	94	4	,	,	PUNCT
ajst-5638	94	5	2017	2017	NUM
ajst-5638	94	6	,	,	PUNCT
ajst-5638	94	7	2(4	2(4	NUM
ajst-5638	94	8	):	):	PUNCT
ajst-5638	94	9	1	1	NUM
ajst-5638	94	10	-	-	SYM
ajst-5638	94	11	16	16	NUM
ajst-5638	94	12	.	.	PUNCT