Nanoscale investigation of mesoscopic phenomena in superconductor/ferromagnet hybrid structures using low-temperature scanning tunneling microscopy and spectroscopy

ORAL

Abstract

Superconductor/ferromagnet (S/F) heterostructures exhibit unique electronic phenomena which strongly depend on the nature of the constituent materials and the coupling between the layers. Using low-temperature scanning tunneling microscopy and spectroscopy we have investigated S/F structures in the regimes of magnetic and proximity coupling. Here, in the case of S/F systems made of convential low-$T_c$ lead films with different ferromagnet materials, the spatial and temperature dependent effects on the local density of states which emerge at the nanoscale will be discussed.

*Work at Temple University was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award DE-SC0004556.

–

Authors

  • C. Di Giorgio

    • Department of Physics, Temple University, Philadelphia, PA 19122

  • S. A. Moore

    • Department of Physics, Temple University, Philadelphia, PA 19122

  • A. Putilov

    • Department of Physics, Temple University, Philadelphia, PA 19122

  • E. Lechner

    • Department of Physics, Temple University, Philadelphia, PA 19122

  • J. E. Pearson

    • Materials Science Division, Argonne National Laboratory, Argonne, IL

  • V. Novosad

    • Materials Science Division, Argonne National Laboratory, Argonne, IL

  • G. Karapetrov

    • Department of Physics, Drexel University, Philadelphia, PA 19104

  • M. Iavarone

    • Department of Physics, Temple University, Philadelphia, PA 19122