Propagation velocity of longitudinal and transverse acoustic waves and anharmonicity of lattice oscillations

被引：44

作者：

Sanditov, D. S. ^{[1
,2
]}

Mashanov, A. A. ^{[1
]}

Darmaev, M. D. ^{[1
]}

机构：

[1] Buryat State Univ, Ulan Ude 670000, Russia

[2] Russian Acad Sci, Dept Phys Problems, Buryat Sci Ctr, Siberian Branch, Ulan Ude 670047, Buryatia, Russia

来源：

TECHNICAL PHYSICS | 2009年 / 54卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

SOLIDS;

D O I：

10.1134/S1063784209090254

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A linear correlation between the Gruneisen parameter and ratio of the velocities of longitudinal (nu (l))and transverse (nu (t)) acoustic waves in crystals is found. It is assumed that velocities nu (l) and nu (t) are severally harmonic parameters, while their ratio nu (l)/nu (t) is an anharmonic quantity and depends on the ratio between the shear and flexural rigidities of interatomic bonds.

引用

页码：1398 / 1401

页数：4

共 6 条

[1]

ANDERSON O, 1965, PHYS ACOUST B, V3, P62

[2] Interrelation between anharmonicity and lateral strain in quasi-isotropic polycrystalline solids [J].