Electrical-Conductivity Fluctuations near the Percolation Threshold

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10 June 1985

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 54 (23) , 2529-2532
https://doi.org/10.1103/physrevlett.54.2529

Abstract

\frac{1}{f}

noise near the percolation threshold

X_{c}

of carbon-wax mixtures was carefully studied. The noise spectral density was found to diverge with a power-law dependence on

X - X_{c}

. Our results might be qualitatively explained by carrier-number fluctuations, produced by tunneling conduction, in infinite clusters.

Keywords

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