Anomalous hopping exponents of ultrathin metal films

N. Marković, C. Christiansen, D. E. Grupp, A. M. Mack, G. Martinez-Arizala, A. M. Goldman

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The temperature dependence of the resistance (Formula presented) of ultrathin quench-condensed films of Ag, Bi, Pb, and Pd has been investigated. In the most resistive films, (Formula presented) where (Formula presented) Surprisingly, the exponent x was found to be constant for a wide range of (Formula presented) and (Formula presented) in all four materials, possibly implying a consistent underlying conduction mechanism. The results are discussed in terms of several different models of hopping conduction.

Original languageEnglish (US)
Pages (from-to)2195-2200
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume62
Issue number3
DOIs
StatePublished - 2000

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