On the use of separation of scales in the solution of hopping transport problems

被引：4

作者：

Bleibaum, O

Böttger, H

Bryksin, VV

机构：

[1] Univ Magdeburg, Inst Theoret Phys, D-39106 Magdeburg, Germany

[2] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

来源：

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 2001年 / 81卷 / 09期

关键词：

D O I：

10.1080/13642810108205781

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the paper we show how separation of scales can be used for the calculation of the critical hopping length and its dispersion in the whole range of frequencies. The separation of scales that we use is already present in the pair approximation of Pollak and Geballe. In fact, with decreasing frequency the hopping length increases compared with the localization length. If we use this fact, we obtain a general method that can be applied to systems with and without inelastic scattering both close to and far from equilibrium. We demonstrate the applicability of the method for several examples and discuss the relation of the method to our previous effective-medium method.

引用

页码：925 / 940

页数：16