高压物理学报2001，Vol.15Issue(1)：60-63,4.
压力对La0．3Bi0．2Ca0．5MnO3中晶格
畸变的影响
PRESSURE EFFECT ON LATTICE DISTORTIONS
OF La0．3Bi0．2Ca0．5MnO3
王欣 1崔启良 1潘跃武 1邹广田 1刘景2
作者信息
- 1. 吉林大学
- 2. 中国科学院高能物理研究所,
- 折叠
摘要
Abstract
In-situ high pressure behav iors of Jahn-Teller distortions in La0．3Bi0．2Ca0．5 MnO3 were studied by energy dispersive X-ray diffraction.External pressure modified effectively local structural parameters such as the Mn—O bond distanc e and Mn—O—Mn bond angle,and brings about the competition between the distorte d mode Q2 and Q3.With pressure increasing,mode Q3 becomes dominant wh ile mode Q2 within the a-b basal plane disappears at ～1．8GPa.关键词
La0．3Bi0．2Ca0．5MnO3/Jahn-Teller畸变/同步辐射/高压X射线衍射
分类
数理科学引用本文复制引用
王欣,崔启良,潘跃武,邹广田,刘景..压力对La0．3Bi0．2Ca0．5MnO3中晶格
畸变的影响
[J].高压物理学报,2001,15(1):60-63,4.
