UNIVERSAL AC CONDUCTIVITY OF NONMETALLIC DISORDERED SOLIDS AT LOW-TEMPERATURES

被引：33

作者：

DYRE, JC

机构：

[1] Institute of Mathematics and Physics, Roskilde Universitetscenter, DK-4000 Roskilde

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.47.9128

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is shown that, in the low-temperature limit, the effective-medium approximation predicts a universal frequency dependence of the conductivity of nonmetallic disordered solids. The calculation is based on a macroscopic approach to ac conduction and is valid in more than one dimension. The universality prediction is confirmed by simulations in two dimensions.

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页码：9128 / 9131

页数：4

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