Vortex Confinement in S/F heterostructures

ORAL

Abstract

Low temperature scanning tunneling microscopy and magnetic force microscopy have been used to directly visualize the superconducting vortex behavior in hybrid structures consisting of striped ferromagnetic materials (such as Py or Co/Pd) and conventional superconductors (such as Nb or Pb). We observe that strong confinement potential profoundly affects the vortex spatial distribution eventually leading to vortex cluster formation. High resolution scanning tunneling microscopy has been used to obtain detailed information of the local electronic density of states outside and inside the vortex clusters.

*Work done at Temple University was supported by the US. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), Division of Materials Sciences and Engineering, under Grant No. DE-SC0004556. Work at Argonne National Laboratory was supported by the US. Department of Energy (DOE), Office

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Presenters

  • Cinzia Di Giorgio

    • Physics, Temple University

Authors

  • Cinzia Di Giorgio

    • Physics, Temple University

  • Fabrizio Bobba

    • Physics Department, Salerno University
    • Physics, University of Salerno

  • Anna Maria Cucolo

    • Physics, University of Salerno

  • Steven Moore

    • Physics, Temple University

  • Valentyn Novosad

    • Argonne Natl Lab
    • Materials Science Division, Physics Division, Argonne National Laboratory
    • Materials Science Division, Argonne National Laboratory
    • Argonne National Laboratory

  • Volodymyr Yefremenko

    • Argonne Natl Lab
    • High Energy Physics, Argonne National Laboratory
    • Materials Science Division, Argonne National Laboratory
    • Argonne National Laboratory

  • Goran Karapetrov

    • Drexel University
    • Physics, Drexel University

  • Maria Iavarone

    • Physics Department, Temple University
    • Physics, Temple University