EVALUATION OF DENSITY OF VIBRATIONAL-STATES OF GLASSES FROM LOW-FREQUENCY RAMAN-SPECTRA

被引：165

作者：

SOKOLOV, AP

KISLIUK, A

QUITMANN, D

DUVAL, E

机构：

[1] UNIV LYON 1,PHYSICOCHIM MAT LUMINESCENTS LAB,F-69622 VILLEURBANNE,FRANCE

[2] NOVOSIBIRSK AUTOMAT & ELECTROMETRY INST,NOVOSIBIRSK 630090,RUSSIA

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.48.7692

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low-frequency Raman spectra of some glasses have been measured at low temperature. Comparison of the spectra with heat-capacity data shows that in a broad frequency range the Raman intensity is simply proportional to the number of vibrational excitations [density of the vibrational states g(nu) multiplied by the Bose factor]. The conclusion is reached that g(nu) up to half of the Debye frequency may be evaluated from the low-frequency Raman spectra of disordered solids.

引用

页码：7692 / 7695

页数：4

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