Study of CaTiO3 structure under high pressure

	Study of CaTiO3 structure under high pressure
	Wu X(巫翔); Wu ZY(吴自玉); Guo L(郭林); Liu J(刘景); Li XD(李晓东); Wu, X; Qin, S; Wu, ZY; Dong, YH; Liu, J
刊名	ACTA PHYSICA SINICA
	2004
卷号	53 期号:6 页码:1967-1971
关键词	CaTiO3 structure high pressure equation of state
通讯作者	Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China ; Peking Univ, Dept Geol, Beijing 100871, Peoples R China
英文摘要	In situ high-pressure (up to 44.53 GPa) energy dispersive x-ray diffraction experiments have been carried out on CaTiO3 in a diamond anvil cell at room temperature by using synchrotron radiation. Experimental data show that the a and b axes have similar compressibilities with large variation, while the c axis is less compressible with increasing pressure. However, there is no evidence of any structural transformation in this pressure range. The isothermal P-V equation of the state of CaTiO3 is fitted using the Murnaghan equation of state, which yields values of V-0 = 0.2245 (6) nm(3) and K-0 = 222 (9) GPa assuming the pressure derivative K'(0) = 4. According to the relation of the pseudo-cubic angle gamma(pc), and pressure, the structure of CaTiO3 will reduce its symmetry under hydrostatic pressure.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000221946200065
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/239597]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wu X,Wu ZY,Guo L,et al. Study of CaTiO3 structure under high pressure[J]. ACTA PHYSICA SINICA,2004,53(6):1967-1971.
APA	巫翔.,吴自玉.,郭林.,刘景.,李晓东.,...&Li, XD.(2004).Study of CaTiO3 structure under high pressure.ACTA PHYSICA SINICA,53(6),1967-1971.
MLA	巫翔,et al."Study of CaTiO3 structure under high pressure".ACTA PHYSICA SINICA 53.6(2004):1967-1971.