Far-infrared optical properties of YVO4 single crystal

被引：23
|
作者：
Bi, C. Z.
Ma, J. Y.
Yan, J.
Fang, X.
Yao, D. Z.
Zhao, B. R.
Qiu, X. G.
机构：
[1] Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100080, Peoples R China
[2] Wuhan Univ, Dept Phys, Wuhan 430072, Hubei, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL B | 2006年 / 51卷 / 02期
关键词：
D O I：
10.1140/epjb/e2006-00206-x
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Near-normal incident infrared reflectivity spectra of a (001) YVO4 single crystal have been measured at different temperatures in the frequency region between 100 and 6000 cm(-1). The reflectivity spectra are analyzed with the factorized form of the dielectric function, and the dielectric properties and optical conductivity of the YVO4 crystal are obtained. From the TO/LO splitting, effective charges at different temperatures are calculated to study the ionicity of YVO4. The internal modes of the VO43- ion and the external modes of the Y(VO4) lattice are compared with SiO44- in zircon and with other rare-earth vanadates.
引用
收藏
页码：167 / 171
页数：5
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