Ferromagnetic Contacts to InSb nanowires

ORAL

Abstract

InSb nanowires are versatile platforms for a variety of quantum transport experiments. Here we develop ferromagnetic contacts onto InSb nanowires. We fabricate four terminal devices (spin-valve geometry) using both Ti/Au and CoFe contacts. At low temperature, both local and non-local experiments demonstrate hysteretic spin-valve like signals. Besides spin injection, we are considering other explanations, for example, the magneto-Coulomb effect. In addition, magnetized ferromagnetic contacts themselves create local magnetic fields, which may affect conductance in high g-factor InSb nanowires.

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Presenters

  • Yifan Jiang

    • Department of Physics and Astronomy, University of Pittsburgh

Authors

  • Yifan Jiang

    • Department of Physics and Astronomy, University of Pittsburgh

  • Zedong Yang

    • University of Minnesota
    • School of Physics and Astronomy, University of Minnesota Twin Cities

  • Diana Car

    • Applied Physics, Eindhoven University of Technology
    • Eindhoven University of Technology
    • TU Eindhoven

  • Sasa Gazibegovic

    • Applied Physics, Eindhoven University of Technology
    • Eindhoven University of Technology
    • Applied Physics, Eindhoven Univ. of Technology
    • Department of Applied Physics, Eindhoven University of Technology
    • TU Eindhoven
    • Eindhoven University of Technology, Department of Applied Physics

  • Badawy Ghada

    • Eindhoven University of Technology
    • TU Eindhoven

  • Roy L. M. Op het Veld

    • Department of Applied Physics, Eindhoven University of Technology
    • TU Eindhoven
    • Eindhoven University of Technology, Department of Applied Physics
    • Eindhoven University of Technology

  • Sébastien Plissard

    • LAAS CNRS
    • LAAS Toulouse

  • Erik P. A. M. Bakkers

    • Applied Physics, Eindhoven University of Technology
    • Eindhoven University of Technology
    • Applied Physics, Eindhoven Univ. of Technology
    • Department of Applied Physics, Eindhoven University of Technology
    • TU Eindhoven
    • Eindhoven University of Technology, Department of Applied Physics
    • Physics, TU Eindhoven

  • Vlad S Pribiag

    • School of Physics and Astronomy, University of Minnesota
    • University of Minnesota
    • School of Physics and Astronomy, University of Minnesota Twin Cities
    • Physics, University of Minnesota

  • Sergey M Frolov

    • University of Pittsburgh
    • Department of Physics and Astronomy, University of Pittsburgh
    • Physics, Univ of Pittsburgh