X-ray diffraction study of ion thermal vibrations in R2CuO4 (R=Pr and Gd) crystals

被引：0
|
作者：
A. A. Levin
Yu. I. Smolin
Yu. F. Shepelev
E. I. Golovenchits
V. A. Sanina
机构：
[1] Russian Academy of Sciences,Grebenshchikov Institute of Silicate Chemistry
[2] Russian Academy of Sciences,Ioffe Physicotechnical Institute
来源：
Physics of the Solid State | 2000年 / 42卷
关键词：
Spectroscopy; Phase Transition; State Physics; Spatial Distribution; Structural Phase;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An X-ray diffraction study is reported of the symmetry in the spatial distribution of thermal vibrations of Cu2+, Gd3+, and Pr3+ ions in Gd2CuO4 crystals. An analysis of the pattern of the angular thermal-vibration amplitude distribution obtained experimentally at different temperatures allows a conclusion about the character of the local Jahn-Teller effect for the Cu2+ ions, structural phase transitions, and the orbital ground state of the Cu2+ ions.
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页码：153 / 160
页数：7
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