Phase transitions in PbTe under quasi-hydrostatic pressure up to 50GPa

	Phase transitions in PbTe under quasi-hydrostatic pressure up to 50GPa
	Li YC(李延春); Lin CL(林传龙); Li, YC; Lin, CL; Li, H; Li, XD; Liu, J; Li XD(李晓东); Liu J(刘景)
刊名	HIGH PRESSURE RESEARCH
	2013
卷号	33 期号:4 页码:713-719
关键词	PbTe high pressure diamond anvil cell phase transition
英文摘要	PbTe has been investigated using synchrotron X-ray diffraction (XRD) in a diamond anvil cell under quasi-hydrostatic pressures up to 50 GPa. Upon compression to 6.6 GPa, the initial NaCl phase transforms to an intermediate phase, which is confirmed to be an orthorhombic structure with a space group Pnma. At 18.4 GPa, the intermediate Pnma phase undergoes a phase transition to the CsCl structure. The systemic analysis of the crystal structures between the NaCl and intermediate phases indicates that the structure of the Pnma phase could be derived from the distortion of the NaCl structure. The bulk modulus of the CsCl phase is B-0=52(2) GPa with V-0=60.8(4) angstrom(3) and B-0=4.0 (fixed), slightly larger than the NaCl phase (B-0=44(1) GPa) and the intermediate phase (B-0=49(3) GPa).
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000327931000001
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224046]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Li YC,Lin CL,Li, YC,et al. Phase transitions in PbTe under quasi-hydrostatic pressure up to 50GPa[J]. HIGH PRESSURE RESEARCH,2013,33(4):713-719.
APA	李延春.,林传龙.,Li, YC.,Lin, CL.,Li, H.,...&刘景.(2013).Phase transitions in PbTe under quasi-hydrostatic pressure up to 50GPa.HIGH PRESSURE RESEARCH,33(4),713-719.
MLA	李延春,et al."Phase transitions in PbTe under quasi-hydrostatic pressure up to 50GPa".HIGH PRESSURE RESEARCH 33.4(2013):713-719.