Anomalous Drude model

被引：23

作者：

SchulzBaldes, H

机构：

[1] Laboratoire de Physique Quantique, Université Paul-Sabatier, Toulouse Cedex, 31062, 118, Route de Narbonne

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.78.2176

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A generalization of the Drude model is studied. On the one hand, the free motion of the particles is allowed to he sub- or superdiffusive; on the other hand, the distribution of the time delay between collisions is allowed to have a long tail and even a nonvanishing first moment. The collision averaged motion is either regular diffusive or Levy-flight-like. The anomalous diffusion coefficients show complex scaling laws. The conductivity can be calculated in the diffusive regime. The model is of interest for the phenomenological study of electronic transport in quasicrystals.

引用

页码：2176 / 2179

页数：4

共 21 条

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