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