LATTICE-DYNAMICS OF BINARY-ALLOYS

被引：6
|
作者：
GURSKII, ZA
CHUSHAK, YG
机构：
[1] Division of Statistical Physics, Institute of Theoretical Physics, Academy of Sciences of the Ukrainian Ssr
来源：
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1990年 / 157卷 / 02期
关键词：
D O I：
10.1002/pssb.2221570207
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Lattice dynamics of binary alloys is investigated by the collective variables method. The relation between a developing technique and the well‐known virtual crystal and coherent potential approximations is analysed. The characteristic property of the theory presented consists in taking into account explicitly the short‐range order. The influence of pair correlations on the vibrational density of states and the Debye temperature for K–Rb alloys is calculated and discussed. The short‐range‐order effects on the dynamic properties are shown to be strong near the order–disorder phase transition temperature. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA
引用
收藏
页码：557 / 566
页数：10
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