High frequency sounds waves in vitreous silica

被引：70

作者：

Dell'Anna, R ^{[1
]}

Ruocco, G

Sampoli, M

Viliani, G

机构：

[1] Univ Aquila, I-67100 Laquila, Italy

[2] INFM, I-67100 Laquila, Italy

[3] Univ Florence, I-50139 Florence, Italy

[4] INFM, I-50139 Florence, Italy

[5] INFM, I-38050 Povo, Trento, Italy

[6] Univ Trent, I-38050 Povo, Trento, Italy

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.80.1236

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a molecular dynamics simulation study of the sound waves in vitreous silica in the mesoscopic exchanged momentum range, The calculated dynamic structure factors ate in quantitative agreement with recent experimental inelastic neutron and x-ray scattering data. Analysis of the longitudinal and transverse current spectra allows us to discriminate between opposite interpretations of the existing experimental data in favor of the propagating nature of the high frequency sound waves.

引用

页码：1236 / 1239

页数：4

共 23 条

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