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Critical behavior in the linear response of a superconductor to a static magnetic field

✍ Scribed by F de Pasquale; E Tabet

Publisher: Elsevier Science
Year: 1971
Tongue: English
Weight: 824 KB
Volume: 65
Category: Article
ISSN: 0003-4916
DOI: 10.1016/0003-4916(71)90161-8

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✦ Synopsis

The order parameter fluctuations are studied in the framework of the microscopic theory of superconductivity, both for T> T, and for T-C T,. The critical behavior of the local superfluid density ps (k) is investigated and the continuity of pS in the critical region is explicitly shown. Long range correlations in the order parameter-order parameter correlation function T(q) are found below TC The link of the behavior of T(q) with the Goldstone mode induced by the gauge symmetry breakdown and the role played by long range correlations in ensuring continuity in the critical region are discussed. Agreement with the phenomenological theory and with some previous results for T> r, is found.

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