AN IMPROVED SELF-CONSISTENT PHONON APPROXIMATION

被引：114

作者：

GOLDMAN, VV

HORTON, GK

KLEIN, ML

机构：

[1] Department of Physics, Rutgers, State University, New Brunswick

来源：

PHYSICAL REVIEW LETTERS | 1968年 / 21卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.21.1527

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A self-consistent phonon approximation that includes odd-order anharmonic terms is found to give improvement over the usual lowest-order self-consistent phonon approximation when applied to computation of several properties of crystalline Ne and Ar. At low temperatures the improved theory joins smoothly onto the results of conventional perturbation theory. © 1968 The American Physical Society.

引用

页码：1527 / &

共 15 条

[1]

Born M., 1951, FESTSCHRIFT FEIER MP

[2]

Choquard P., 1967, ANHARMONIC CRYSTAL

[3] ANHARMONIC CONTRIBUTIONS TO HELMHOLTZ FREE ENERGY OF A SIMPLE CRYSTAL MODEL - HIGH-TEMPERATURE LIMIT AND ZERO-POINT ENERGY [J].