Diffusion coefficients of single and many particles in lattices with different forms of disorder

被引：22

作者：

Kehr, KW

Wichmann, T

机构：

来源：

DISORDERED MATERIALS - CURRENT DEVELOPMENTS - | 1996年 / 223卷

关键词：

random transition rates; random barriers; random traps; Miller-Abrahams model; diffusion coefficient; coefficient of collective diffusion; effective medium theory; site-exclusion model;

D O I：

10.4028/www.scientific.net/MSF.223-224.151

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A survey is given on asymptotic diffusion coefficients of particles in lattices with random transition rates. Exact and approximate results for single particles are reviewed. A recent exact expression in d = 1 which includes occupation factors is discussed. The utilization of the result is demonstrated for the Miller-Abrahams model and a model of random barriers combined with random traps. Exact and approximate results for the site-exclusion model in disordered lattices are also given.

引用

页码：151 / 160

页数：10

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