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Structure determination of the high-pressure phase of CdSe
Li YC(李延春); Lin CL(林传龙); Li, YC; Lin, CL; Li, G; Xu, J; Li, XD; Liu, J; Li XD(李晓东); Liu J(刘景)
2014
发表期刊JOURNAL OF APPLIED PHYSICS
卷号115期号:22页码:223507
摘要Structural phase transition sequence of CdSe has been investigated at pressures up to 60GPa under quasi-hydrostatic conditions using synchrotron X-ray diffraction. A phase transition from the wurtzite type (B4) to the NaCl-type (B1) structure has been observed, followed by another phase transition to an orthorhombic structure at 27GPa, in agreement with previous reports. We show that this high-pressure orthorhombic phase has a Pnma symmetry rather than being a Cmcm-symmetric structure as previously suggested. From our observations, the appearance of the new reflections and reflection splitting with increasing pressure is due to the change of atomic relative positions in crystal lattice and the difference in the compression ratio of lattice parameters for the Pnma structure, and we find no evidence for the third phase transition reported previously. The pressure-induced phase transition of CdSe has been further confirmed by the density-functional theory calculations. (C) 2014 AIP Publishing LLC.
学科领域Physics
DOI10.1063/1.4882298
收录类别SCI
WOS记录号WOS:000337891800015
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225064
专题多学科研究中心
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Li YC,Lin CL,Li, YC,et al. Structure determination of the high-pressure phase of CdSe[J]. JOURNAL OF APPLIED PHYSICS,2014,115(22):223507.
APA 李延春.,林传龙.,Li, YC.,Lin, CL.,Li, G.,...&刘景.(2014).Structure determination of the high-pressure phase of CdSe.JOURNAL OF APPLIED PHYSICS,115(22),223507.
MLA 李延春,et al."Structure determination of the high-pressure phase of CdSe".JOURNAL OF APPLIED PHYSICS 115.22(2014):223507.
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