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

被引：164
|
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
收藏
页码：7692 / 7695
页数：4
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