Fluctuations in granular superconductors

R. S. Fishman

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

By expanding the order parameter for an array of Josephson-coupled grains in powers of 1/z, where z is the number of nearest neighbors, I systematically incorporate the effect of phase fluctuations. The correction of order 1/z vanishes when the mean-field solution is known to be exact, for =zJ/U= and T*=T/zJ=0. For larger T* and smaller , the first-order correction increases until it diverges at the mean-field transition temperature.

Original languageEnglish
Pages (from-to)7228-7231
Number of pages4
JournalPhysical Review B
Volume39
Issue number10
DOIs
StatePublished - 1989

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