Structural studies of the distorted perovskite Ca0.25Cu0.75TiO3

被引:78
作者
Moussa, SM [1 ]
Kennedy, BJ [1 ]
机构
[1] Univ Sydney, Sch Chem, Heavy Met Res Ctr, Sydney, NSW 2006, Australia
基金
澳大利亚研究理事会;
关键词
oxides; neutron scattering; crystal structure;
D O I
10.1016/S0025-5408(01)00732-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The crystal structure of Ca0.25Cu0.75TiO3 has been studied between 25 and 1000 degreesC using powder neutron diffraction methods. The diffraction data is well described in space group N-3, and there is no indication of any crystallographic phase transition. The preference of the Jahn-Teller active Cu ion for square planar geometry is believed to be a significant factor in the stabilization of the observed structure. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2525 / 2529
页数:5
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