Restoration of superconductivity in high parallel magnetic fields in layered superconductors

Andrei G Lebed, K. Yamaji

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

We derive an equation determining the upper critical field Hc2(T) parallel to conducting planes of a layered superconductor from the BCS theory. It extends the descriptions of Hc2(T) within the Ginzburg-Landau-Abrikosov-Gor'kov theory and the Lawrence-Doniach model to the case of strong magnetic fields. From this equation, it follows that orbital effects of an electron motion along an open Fermi surface in a magnetic field start to restore superconductivity at magnetic fields higher than the quasiclassical upper critical field and result in the appearance of a reentrant phase with Tc(H) ≃ Tc(0). A stability of the reentrant phase against fluctuations is discussed.

Original languageEnglish (US)
Pages (from-to)2697-2700
Number of pages4
JournalPhysical Review Letters
Volume80
Issue number12
StatePublished - 1998
Externally publishedYes

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restoration
superconductivity
magnetic fields
BCS theory
Fermi surfaces
conduction
orbitals
electrons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Restoration of superconductivity in high parallel magnetic fields in layered superconductors. / Lebed, Andrei G; Yamaji, K.

In: Physical Review Letters, Vol. 80, No. 12, 1998, p. 2697-2700.

Research output: Contribution to journalArticle

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