The frequency dependent permittivity and ac conductivity of random electrical networks

被引：58

作者：

Panteny, S ^{[1
]}

Stevens, R ^{[1
]}

Bowen, CR ^{[1
]}

机构：

[1] Univ Bath, Dept Mech Engn, Mat Res Ctr, Bath BA2 7AY, Avon, England

来源：

FERROELECTRICS | 2005年 / 319卷

基金：

英国工程与自然科学研究理事会;

关键词：

dielectrics; permittivity; modelling; universal response;

D O I：

10.1080/00150190590965884

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It has been shown that the universal dielectric response (UDR) of heterogeneous materials can be reproduced by electrical networks consisting of randomly positioned resistor and capacitors. The random network represents a microstructure that contains both insulating (the capacitor) and conductive regions (the resistor). This paper presents an investigation into the frequency dependent properties of large numbers of resistor-capacitor (R-C) networks. Parameters investigated include permittivity, conductivity and phase angle, with particular emphasis on observed power-law behavior and a comparison with previous work in this area.

引用

页码：199 / 208

页数：10

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