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Ac Response of Heterogeneous Materials: A Numerical Study

Published online by Cambridge University Press:  10 February 2011

A. A. Rodriguez  and
J. Valbuena
A. A. Rodriguez
Affiliation:
Intevep S.A., Apartado 76343, Caracas 1070A, Venezuela.
J. Valbuena
Affiliation:
Intevep S.A., Apartado 76343, Caracas 1070A, Venezuela.
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Abstract

The ac and dc electrical properties of composite materials are studied using hierarchical lattices. First we show that the hierarchical model can correctly account for the main scaling properties of critical percolative structures. Then we study the effect of potential disorder by assuming that the microscopic conductances are distributed according to a power law distribution function. We find that in the limit of strong disorder, the predictions are in qualitative agreement with reported experimental measurements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 463: Symposia EE – Statistical Mechanics in Physics and Biology , 1996 , 239
Copyright
Copyright © Materials Research Society 1997

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References

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