ZONE-CENTER (Q = 0) OPTICAL PHONONS IN CUO STUDIED BY RAMAN AND INFRARED-SPECTROSCOPY

被引：41

作者：

GUHA, S ^{[1
]}

PEEBLES, D ^{[1
]}

WIETING, TJ ^{[1
]}

机构：

[1] USN,RES LAB,WASHINGTON,DC 20375

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.43.13092

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have conducted polarized Raman and infrared-reflectance measurements on CuO single crystals. Group theory predicts nine optical vibrations, of which three (A(g) + 2B(g)) are Raman active and six (3A(u) + 3B(u)) are infrared active. We have observed all nine frequencies. Infrared-reflectance spectra are modeled by a modified three-parameter dielectric-function method adapted to a monoclinic crystal. The nine optical zone-center (q = 0) frequencies are fitted by a lattice-dynamical model based on Wilson's FG matrix method.

引用

页码：13092 / 13101

页数：10

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