Pair propagator approach to fluctuation-induced diamagnetism in superconductors-effects of impurities

Patrick A. Lee, Marvin G. Payne

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

We have obtained, within the ladder approximation, expressions for the electron pair propagator of a dilute superconducting alloy (i.e., subject to the condition ωDτ1) in the presence of strong magnetic field and above the transition temperature. We then proceed to calculate microscopically the free energy and the magnetization. The procedure used in an earlier work on pure superconductors is justified, but important additional contributions are found for alloys.

Original languageEnglish
Pages (from-to)923-931
Number of pages9
JournalPhysical Review B
Volume5
Issue number3
DOIs
StatePublished - 1972

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