Temperature dependent phonon modes and ionicity of LiGaO2 single crystal

被引：0

作者：

马继云 ^{[1
]}

方煦 ^{[1
]}

M. Kamran ^{[1
]}

赵华英 ^{[1
]}

毕聪志 ^{[1
]}

赵柏儒 ^{[1
]}

邱祥冈 ^{[1
]}

机构：

[1] National Laboratory for Superconductivity,Institute of Physics,Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics

来源：

Chinese Physics B | 2008年 / 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：

O735 [晶体的声学性质];

学科分类号：

摘要：

This paper reports that polarized far-infrared reflectivity measurements have been done on LiGaO 2 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 300cm-1 which could arise from Li ions or oxygen deficiencies.The ionicity of LiGaO2 has been studied from the analysis of the Born effective charge of different ions.

引用

页码：3313 / 3317

页数：5

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