A MODIFIED FORMULATION OF LATTICE DYNAMICS

被引：1

作者：

ACHAR, BN

BARSCH, GR

机构：

[1] Materials Research Laboratory, The Pennsylvania State University, Department of Physics, University Park, Pennsylvania

来源：

PHYSICA STATUS SOLIDI | 1969年 / 34卷 / 02期

关键词：

D O I：

10.1002/pssb.19690340223

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A modified formulation of lattice dynamics based on two‐dimensional Fourier‐transforms of the coupling parameters is presented. This approach will be useful for the study of twodimensional defects, surfaces, and layer structures. Subsequent Fourier‐transform in the third dimension recovers the conventional formulation of lattice dynamics. The method is applied to the eigenfrequencies of rocksalt in the approximation of the point ion model and is shown to reproduce Kellermann's results. Copyright © 1969 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：609 / &

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