Determinations of the high-pressure crystal structures of Sb2Te3

	Determinations of the high-pressure crystal structures of Sb2Te3
	Ma, YM; Liu, GT; Zhu, PW; Wang, H; Wang, X; Cui, QL; Liu, J; Ma, YM;刘景
刊名	JOURNAL OF PHYSICS-CONDENSED MATTER
	2012
卷号	24 期号:47 页码:475403
英文摘要	Using the angle-dispersive synchrotron x-ray powder diffraction technique in a diamond anvil cell, the high-pressure behaviors of antimony telluride (Sb2Te3) are explored up to 52.7 GPa at room temperature. Three high-pressure phases have been observed, at about 8.0 GPa, 13.2 GPa and above 21.6 GPa, respectively. Furthermore, the crystalline structures of these high-pressure phases are determined as monoclinic sevenfold C2/m phase, eightfold C2/c phase and disordered body-centered cubic structure (space group Im - 3m) respectively. The phase-transition sequences and pressures observed are well explained by first-principles calculations. The pressure dependence of the volume of all high-pressure phases is described by a third-order Birch-Murnaghan equation of state. All the high-pressure phases are metallic and the metallic character for beta-, gamma- and delta-Sb2Te3 increases in turn based on the results of the electronic density of states calculated for each high-pressure phase.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000310836900008
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224690]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Ma, YM,Liu, GT,Zhu, PW,et al. Determinations of the high-pressure crystal structures of Sb2Te3[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2012,24(47):475403.
APA	Ma, YM.,Liu, GT.,Zhu, PW.,Wang, H.,Wang, X.,...&Ma, YM；刘景.(2012).Determinations of the high-pressure crystal structures of Sb2Te3.JOURNAL OF PHYSICS-CONDENSED MATTER,24(47),475403.
MLA	Ma, YM,et al."Determinations of the high-pressure crystal structures of Sb2Te3".JOURNAL OF PHYSICS-CONDENSED MATTER 24.47(2012):475403.