February 2, 1981Physical Review Letters338 citations
Critical Behavior of the Dielectric Constant of a Random Composite near the Percolation Threshold
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Abstract
Measurements are reported of a singularity in the dielectric constant of a random metal-insulator composite below the percolation threshold. The composite sample consists of small silver particles randomly dispersed throughout a KCl matrix. The dielectric constant is found to obey a scaling relation with a critical exponent of s=0. 730. 07.