h/e-Flux Periodicity in Superconducting Loops

ORAL

Abstract

We apply the BCS theory to superconducting rings with unconventional order parameter symmetries. An external magnetic flux changes the character of the states in the condensate; as a consequence the energy of the superconducting ground state varies with a flux period of h/e. This h/e periodicity is caused by the flux-induced reconstruction of the supercurrent carrying condensate.

*Supported by the Deutsche Forschungsgemeoinschaft through SFB 484.

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Authors

  • Arno Kampf

    • University of Augsburg

  • Florian Loder

    • University of Augsburg

  • Thilo Kopp

    • University of Augsburg

  • Jochen Mannhart

    • University of Augsburg

  • Christof Schneider

    • University of Augsburg

  • Yuri Barash

    • Russian Academy of Sciences, Chernogolovka