Anisotropic Superconductivity in MoGe - Permalloy Bilayers

ORAL

Abstract

We studied the magneto-transport properties of superconductor-ferromagnet MoGe/Permalloy bilayers. The ferromagnet with stripe domain structure induces in-plane anisotropy in superconducting order parameter. Superconducting phase diagram shows that near the S-N phase boundary the superconductivity is localized in narrow mesoscopic channels just above the magnetic domain walls. By changing the in-plane direction of magnetic stripe domains it is possible to re-configure the direction of the superconducting channels and enable one to control the direction of the anisotropy axis in the superconductor.

*This work was supported by UChicago Argonne, LLC, Operator of Argonne National Laboratory (``Argonne"). Argonne, a U.S. Department of Energy Office of Science Laboratory, is operated under Contract No. DE-AC02-06CH11357.

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Authors

  • Goran Karapetrov

    • Argonne National Laboratory
    • Argonne National Lab

  • A. Belkin

    • Argonne National Laboratory and Illinois Institiute of Technology
    • ANL and Illinois Institute of Technology

  • V. Novosad

    • Argonne National Laboratory
    • Argonne National Lab

  • M. Iavarone

    • Argonne National Laboratory
    • Argonne National Lab

  • J. Fedor

    • Argonne National Lab

  • Andra Petrean-Troncalli

    • Austin College

  • J.E. Pearson

    • MSD, Argonne National Laboratory
    • Argonne National Laboratory
    • Argonne National Lab

  • Wai -K Kwok

    • Argonne National Laboratory
    • Argonne National Lab
    • Materials Science Division, Argonne National Laboratory
    • Material Science Division, Argonne National Laboratory