A WKB estimate for the resistivity at zero temperature coefficient in granular systems

O. Entin-Wohlman, Y. Shapira

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Abstract

The authors derive an estimate for the resistivity rho of granular materials for which the temperature coefficient (TCR) is zero. The derivation is based on the WKB approximation. The result is independent of the grain size and agrees with the experimental data of various granular systems within an order of magnitude. The relation between rho (TCR=0) and the resistivity at the metal-insulator transition is discussed.

Original languageEnglish
Article number016
Pages (from-to)975-980
Number of pages6
JournalJournal of Physics C: Solid State Physics
Volume15
Issue number5
DOIs
StatePublished - 1 Dec 1982
Externally publishedYes

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