Boson peak in modified borate glasses

被引：44

作者：

Kojima, S ^{[1
]}

Kodama, M

机构：

[1] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

[2] Kumamoto Inst Technol, Dept Ind Chem, Ikeda, Kumamoto 8600082, Japan

来源：

PHYSICA B | 1999年 / 263卷

关键词：

Raman; boson peak; vibration; modified borate glass;

D O I：

10.1016/S0921-4526(98)01234-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The composition dependence of boson peak for modified borate glasses was measured using Raman scattering spectroscopy. For caesium and barium borate glasses, the peak frequency of boson peak is almost independent of the composition. While for lithium borate glass, it depends markedly on composition. The correlation between boson peak frequency and shear modulus determined by sound velocity was discussed in these glasses. It was concluded that the boson peak of modified borate glasses originates from a damped harmonic oscillator as a localized torsional mode of a cluster of medium-range. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：336 / 338

页数：3

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