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)
AbstractPbTe 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).
KeywordPbTe high pressure diamond anvil cell phase transition
Subject AreaPhysics
Indexed BySCI ; ADS
WOS IDWOS:000327931000001
ADS Bibcode2013HPR....33..713L
ADS URLhttps://ui.adsabs.harvard.edu/abs/2013HPR....33..713L
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2013HPR....33..713L/citations
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Cited Times:8 [ADS]
Document Type期刊论文
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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.
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