Magnetotransport in InSb nanowires with ferromagnetic contacts

ORAL

Abstract

InSb semiconductor nanowires are a promising and intensely-studied platform for investigating Majorana bound states [1]. Their strong spin-orbit coupling also makes them interesting for all-electrical control of single spins [2]. Moreover, owing to their relatively long mean free paths and quasi-one-dimensionality, InSb nanowires also have great potential for novel devices which could allow electrical control of spin currents. Motivated by these intriguing possibilities, we fabricated InSb nanowire devices with ferromagnetic contacts, which show evidence of ballistic transport. We report hysteretic features in the magneto-conductance measured at different back-gate voltages, and discuss the possible physical mechanisms responsible for these observations.
[1] V. Mourik et al., Science 336, 1003 (2012).
[2] V. S. Pribiag et al., Nat. Nanotechnol. 8, 170 (2013).

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Presenters

  • Zedong Yang

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

Authors

  • Zedong Yang

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

  • Yifan Jiang

    University of Pittsburgh

  • 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

  • Paul Crowell

    Physics and Astronomy, University of Minnesota, University of Minnesota, School of Physics and Astronomy, University of Minnesota

  • Sergey M Frolov

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

  • 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