Anharmonicity of Lattice Vibrations and Transverse
Deformation of Crystalline and Vitreous Solids

D. S. Sanditov^{a, b}, V. V. Mantatov^a, and B. D. Sanditov^a

^a Buryat State University, ul. Smolina 24a, Ulan-Udé, 670000 Russia

e-mail: Sanditov@bsu.ru

^b Department of Physical Problems, Buryat Scientific Center, Siberian Branch of the Russian Academy of Sciences,
ul. Sakh’yanovo 8, Ulan-Udé, 670047 Russia

Received March 12, 2008; in final form, June 3, 2008

Abstract—This paper reports on the additional data confirming the interrelation between the Grüneisen param-
eter and Poisson’s ratio in crystalline and vitreous solids. The assumption is made that the ratio between the
velocities of longitudinal and transverse acoustic waves can depend on the anharmonicity of lattice vibrations.

PACS numbers: 63.20.-e, 05.70.-a

DOI: 10.1134/S1063783409050187

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