Magnitude and Spatial Distribution Control of the Supercurrent in Bi<sub>2</sub>O<sub>2</sub>Se-Based Josephson Junction

ORAL

Abstract

Many proposals for exploring topological quantum computation are based on superconducting quantum devices constructed on materials with strong spin−orbit coupling (SOC). For these devices, full control of both the magnitude and the spatial distribution of the supercurrent is highly demanded, but has been elusive up to now. We constructed a proximity-type Josephson junction on nanoplates of Bi2O2Se, a new emerging semiconductor with strong SOC. Through electrical gating, we show that the supercurrent can be fully turned ON and OFF, and its real-space pathways can be configured either through the bulk or along the edges. Our work demonstrates Bi2O2Se as a promising platform for constructing multifunctional hybrid superconducting devices as well as for searching for topological superconductivity.

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Presenters

  • Fanming Qu

    • Chinese Academy of Sciences,Institute of Physics

Authors

  • Jianghua Ying

    • Chinese Academy of Sciences,Institute of Physics

  • Jiangbo He

    • Chinese Academy of Sciences,Institute of Physics

  • Guang Yang

    • Chinese Academy of Sciences
    • Chinese Academy of Sciences,Institute of Physics

  • Mingli Liu

    • Chinese Academy of Sciences,Institute of Physics

  • Zhaozheng Lyu

    • Chinese Academy of Sciences,Institute of Physics

  • Xiang Zhang

    • Chinese Academy of Sciences,Institute of Physics

  • Huaiyuan Liu

    • Chinese Academy of Sciences,Institute of Physics

  • Kui Zhao

    • Chinese Academy of Sciences,Institute of Physics

  • Ruiyang Jiang

    • Chinese Academy of Sciences,Institute of Physics

  • Zhongqing Ji

    • Chinese Academy of Sciences,Institute of Physics

  • Jie Fan

    • Chinese Academy of Sciences,Institute of Physics

  • Changli Yang

    • Daniel Chee Tsui Laboratory, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science
    • Chinese Academy of Sciences,Institute of Physics

  • Xiunian Jing

    • Chinese Academy of Sciences,Institute of Physics

  • Guangtong Liu

    • Chinese Academy of Sciences,Institute of Physics

  • Xuewei Cao

    • Nankai University

  • Xuefeng Wang

    • Nanjing University

  • Li Lu

    • Chinese Academy of Sciences,Institute of Physics
    • Chinese Academy of Sciences,Institute of Semiconductors

  • Fanming Qu

    • Chinese Academy of Sciences,Institute of Physics