H-T phase diagram of granular superconductors

A. Gerber, Th Grenet, M. Cyrot, J. Beille

Research output: Contribution to journalArticlepeer-review

Abstract

We propose an H-T phase diagram of granular superconductors based on the separate analyses of the intragranular critical fields and that of an assembly of Josephson junctions. The model is examined experimentally and its predictions are applied to several problems of high-temperature superconductivity like the Hc2(T) enhancement with a temperature reduction, the width of the R(T) transition under an applied magnetic field, and a double-step Jc(H) variation.

Original languageEnglish
Pages (from-to)5099-5102
Number of pages4
JournalPhysical Review B-Condensed Matter
Volume45
Issue number9
DOIs
StatePublished - 1992
Externally publishedYes

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