ON UMKLAPP PROCESSES IN THE ELECTRODYNAMICS OF CRYSTALS

被引：3

作者：

EKHILEVSKY, SG

TYU, NS

机构：

[1] Department of Higher Mathematics, Polytechnical Institute, Donetsk

来源：

PHYSICS LETTERS A | 1991年 / 158卷 / 05期

关键词：

D O I：

10.1016/0375-9601(91)91010-B

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For any dielectric crystals in which there are no external charges and currents the expression for the dielectric permittivity tensor is obtained with umklapp processes taken into account. It is shown that all these processes describe a short-wavelength retarded interaction of the charges in the medium and they should be taken into account in an investigation of spatial dispersion effects.

引用

页码：258 / 260

页数：3