SELF-CONSISTENT PHONON AND MAGNETOPHONON AND CUBIC ANHARMONIC CORRECTIONS OF THE 2D ELECTRON LATTICE

被引：21
|
作者：
ESFARJANI, K [1 ]
CHUI, ST [1 ]
机构：
[1] UNIV DELAWARE,BARTOL RES INST,NEWARK,DE 19716
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1991年 / 3卷 / 31期
关键词：
D O I：
10.1088/0953-8984/3/31/006
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Anharmonic corrections to the phonon and magnetophonon spectrum of the two-dimensional electron solid at zero temperature are investigated. A self-consistent phonon theory is used and the cubic anharmonic correction coming from second order perturbation theory is included. This correction is larger than the self-consistent one, and yields a decrease in the phonon spectrum. Lindemann's ratio and corrections to the total energy of the solid are calculated as well.
引用
收藏
页码：5825 / 5836
页数：12
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