SLOW MODES IN CRYSTALS - A METHOD TO STUDY ELASTIC-CONSTANTS

被引：22

作者：

SZAMEL, G

ERNST, MH

机构：

[1] UNIV WARSAW,INST THEORET PHYS,PL-00681 WARSAW,POLAND

[2] UNIV UTRECHT,INST THEORET FYS,3508 TA UTRECHT,NETHERLANDS

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.48.112

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose a microscopic expression for a displacement field in a crystal and derive nondissipative equations of motion for the slow hydrodynamic and broken-symmetry modes, including the vacancy-diffusion mode. Comparing these equations with the macroscopic ideal equations of elasticity we obtain exact expressions for isothermal elastic constants.

引用

页码：112 / 118

页数：7

共 20 条

[1]

Anderson P. W., 1984, BASIC NOTIONS CONDEN, DOI 10.4324/9780429494116

[2] NATURE OF THE LIQUID-VAPOR INTERFACE AND OTHER TOPICS IN THE STATISTICAL-MECHANICS OF NONUNIFORM, CLASSICAL FLUIDS [J].