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
收藏
页码：151 / 160
页数：10
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