Superconducting diode effect in InSb nanowires with Tin shell

ORAL

Abstract

We study Josephson Junction in InSb nanowires with 15nm Tin shells. We observe critical current diffraction patterns skewed and inversion-symmetric in magnetic field and bias direction. The effect is stronger when the external magnetic field is aligned perpendicular to the nanowire, in the substrate plane. i.e. in the most likely direction of the effective spin-orbit field in the junction. The effect is also tunable by gate voltage. We discuss this effect in the context of phi0-Josephson junction physics, one consequence of which is known in recent literature as superconducting diode effect. We consider alternative explanations such as the effective magnetic field and perform numerical simulations to understand our findings.

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Presenters

  • Bomin Zhang

    • University of Pittsburgh

Authors

  • Bomin Zhang

    • University of Pittsburgh

  • Victor Aguilar

    • Michigan State University

  • Po Zhang

    • University of Pittsburgh

  • Mihir Pendharkar

    • Stanford Univ
    • Stanford University

  • Connor P Dempsey

    • University of California, Santa Barbara
    • Electrical and Computer Engineering, University of California Santa Barbara, Santa Barbara, California 93106, USA
    • University of California in Santa Barbara
    • University of California Santa Barbara

  • Joon Sue Lee

    • University of Tennessee
    • University of Tennessee Knoxville

  • Sean Harrington

    • University of California, Santa Barbara

  • Ghada Badawy

    • Eindhoven University of Technology

  • Sasa Gazibegovic

    • Eindhoven University of Technology

  • Jason Jung

    • Eindhoven University of Technology

  • An-Hsi Chen

    • University of Grenoble Alpes
    • Université Grenoble Alpes
    • Institut Néel CNRS

  • Susheng Tan

    • University of Pittsburgh

  • Marcel Verheijen

    • Eindhoven University of Technology
    • Eurofins Materials Science B.V.

  • Moira Hocevar

    • University of Grenoble Alpes
    • Université Grenoble Alpes
    • Institut Néel CNRS
    • Universite Grenoble Alpes

  • Erik P. A. M. Bakkers

    • Eindhoven University of Technology

  • Chris J Palmstrom

    • University of California, Santa Barbara

  • Sergey M Frolov

    • University of Pittsburgh