Collective transport in arrays of small metallic dots

A. Alan Middleton, Ned S. Wingreen

Research output: Contribution to journalArticlepeer-review

365 Scopus citations

Abstract

Collective charge transport is studied in one- and two-dimensional arrays of small normal-metal dots separated by tunneling barriers. At temperatures well below the charging energy of a dot, disorder leads to a threshold for conduction which grows linearly with the size of the array. For short-ranged interactions, one of the correlation length exponents near threshold is found from a novel argument based on interface growth. The dynamical exponent for the current above threshold is also predicted analytically, and the requirements for its experimental observation are described.

Original languageEnglish (US)
Pages (from-to)3198-3201
Number of pages4
JournalPhysical review letters
Volume71
Issue number19
DOIs
StatePublished - 1993

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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