Gate-induced superconductivity in monolayer WTe2

ORAL

Abstract

We present the discovery that exfoliated monolayer WTe2, recently reported to be a 2D topological insulator, turns superconducting under electrostatic doping. The observed superconductivity, with a Tc around 700 mK, occurs at much lower levels of electron doping as compared to any other known 2D superconductor. The transition from normal to superconducting is gradual in temperature, and responds very differently to perpendicular and in-plane magnetic fields. The critical in-plane magnetic field exceeds the Pauli limit by over a factor of 2, indicating strong spin-orbit interaction.

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Presenters

  • Christian Olsen

    Physics and Astronomy, University of British Columbia, Univ of British Columbia

Authors

  • Ebrahim Sajadi

    Physics and Astronomy, University of British Columbia

  • Tauno Palomaki

    Physics, University of Washington

  • Zaiyao Fei

    Univ of Washington, Physics, University of Washington

  • Wenjin Zhao

    Physics, University of Washington

  • Philip Bement

    Physics and Astronomy, University of British Columbia

  • Christian Olsen

    Physics and Astronomy, University of British Columbia, Univ of British Columbia

  • Silvia Luescher

    Physics and Astronomy, University of British Columbia

  • Xiaodong Xu

    University of Washington, Univ of Washington, Physics, Univ of Washington, Department of Physics, University of Washington, Physics, University of Washington, Physics, and Materials Science and Engineering, Univ of Washington, Department of Physics, University of Washington - Seattle

  • Joshua Folk

    Physics and Astronomy, University of British Columbia, Univ of British Columbia

  • David Cobden

    Univ of Washington, Department of Physics, University of Washington, University of Washington, Physics, University of Washington