Temperature dependence of the vibrational modes of MoO3

被引：42

作者：

Julien, C ^{[1
]}

Yebka, B ^{[1
]}

Nazri, GA ^{[1
]}

机构：

[1] NAO,CTR RES & DEV,DEPT CHEM PHYS,WARREN,MI 48090

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1996年 / 38卷 / 1-2期

关键词：

infrared; anharmonicity; molybdenum oxide;

D O I：

10.1016/0921-5107(95)01314-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transmission and reflection spectra of orthorhombic MoO3 crystals have been measured from 20 to 600 cm(-1) as a function of temperature. Reflectivity spectra are fitted with a four-parameter dispersion model based on the factorized form of the complex dielectric function. The temperature dependence of the frequency is analysed using the anharmonic model with two- and three-phonon decay functions. This temperature dependence is dominated by the cubic term in the anharmonic model.

引用

页码：65 / 71

页数：7

共 37 条

[1] ANHARMONIC EFFECTS IN LIGHT-SCATTERING DUE TO OPTICAL PHONONS IN SILICON [J].