Temperature dependent phonon modes and ionicity of LiGaO2 single crystal

被引：0
|
作者：
Ma Ji-Yun
Fang Xu
Kamran, M.
Zhao Hua-Ying
Bi Cong-Zhi
Zhao Bai-Ru
Qiu Xiang-Gang [1 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100190, Peoples R China
来源：
CHINESE PHYSICS B | 2008年 / 17卷 / 09期
基金：
中国国家自然科学基金;
关键词：
infrared; optical conductivity; LiGaO2 single crystal; phonon;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
This paper reports that polarized far-infrared reflectivity measurements have been done on LiGaO2 single crystal along two crystalline axes at different temperatures. The temperature dependent frequencies of the longitudinal and transverse optical phonon have been obtained from the real part of optical conductivity and the loss function respectively. A small Drude component is observed at frequency below 300 cm(-1) which could arise from Li ions or oxygen deficiencies. The ionicity of LiGaO2 has been studied from the analysis of the Boron effective charge of different ions.
引用
收藏
页码：3313 / 3317
页数：5
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