Local superconducting coupling in the strong-localization limit of ultrathin granular metal films

D. B. Haviland, H. M. Jaeger, B. G. Orr, A. M. Goldman

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The onset of fluctuations into the superconducting state, as identified by the appearance of a local minimum in the resistance versus temperature, is found to be coincident with the characteristic activation energy of normal-state conduction falling to a value of the order of the superconducting energy gap of the material at T=0. The model of conduction used is variable-range hopping with a Coulomb gap, appropriate to granular metals.

Original languageEnglish (US)
Pages (from-to)719-722
Number of pages4
JournalPhysical Review B
Volume40
Issue number1
DOIs
StatePublished - Jan 1 1989

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