Scanning Tunneling Microscopy of Candidate Majorana States in Josephson Junctions

ORAL

Abstract

In this talk we will present progress on scanning tunneling microscopy (STM) and spectroscopy (STS) probes of devices that meet the theoretical requirements to support Majorana Zero Modes (MZMs). We will detail our nanofabrication process to create candidate Majorana systems that are tailored for compatibility with cryogenic STS probing. We will present STM and STS data acquired on Josephson Junctions constructed from superconducting niobium and topological insulator bismuth selenide. Our main target is to probe Josephson vortices in these devices that result from an applied magnetic field.

*This work is supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award Number DE-SC0017888. This work is based in part on research conducted at The Pennsylvania State University Two-Dimensional Crystal Consortium – Materials Innovation Platform (2DCC-MIP) which is supported by NSF cooperative agreement DMR-1539916.

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Presenters

  • Elinore L McLain

    • Michigan State University

Authors

  • Elinore L McLain

    • Michigan State University

  • Michael Gottschalk

    • Michigan State University

  • Reza Loloee

    • Michigan State University

  • Hande Huang

    • Michigan State University

  • Guang Yue

    • University of Illinois at Urbana-Champai

  • Yongxi Ou

    • The Pennsylvania State University
    • Pennsylvania State University

  • Nitin Samarth

    • Pennsylvania State University
    • The Pennsylvania State University

  • Anthony R Richardella

    • Pennsylvania State University

  • Dale J Van Harlingen

    • University of Illinois at Urbana-Champai

  • Stuart H Tessmer

    • Michigan State University