Phenomenological equations for the electrical conductivity of microscopically inhomogeneous materials
- 15 April 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 13 (8) , 3261-3267
- https://doi.org/10.1103/physrevb.13.3261
Abstract
Phenomenological equations for the electrical conductivity of microscopically inhomogeneous materials are proposed. These equations combine ideas from the effective-medium theory and from percolation theory and, for some interesting cases, improve on the effective-medium theory in the vicinity of the percolation threshold. The equations are compared, without adjustable parameters, to three different experimental situations and agree with data remarkably well.Keywords
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