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

页码：5825 / 5836

页数：12

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