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Type-II Ising superconductivity in two-dimensional materials with spin-orbit coupling

ORAL

Abstract

Centrosymmetric materials with spin-degenerate bands are generally considered to be trivial for spintronics and related physics. In two-dimensional (2D) materials with multiple degenerate orbitals, we find that the spin-orbit coupling can induce spin-orbital locking, generate out-of-plane Zeeman-like fields displaying opposite signs for opposing orbitals, and create novel electronic states insensitive to in-plane magnetic field, which thus enables a new type of Ising superconductivity applicable to centrosymmetric materials. Many candidate materials are identified by high-throughput first-principles calculations. Our work enriches the physics and materials of Ising superconductivity, opening new opportunities for future research of 2D materials.

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Presenters

  • Chong Wang

    Tsinghua University, Carnegie Mellon University

Authors

  • Chong Wang

    Tsinghua University, Carnegie Mellon University

  • Biao Lian

    Princeton Center for Theoretical Science, Princeton University, Princeton University, Physics, Princeton University

  • Xiaomi Guo

    Tsinghua University

  • Zetao Zhang

    Tsinghua University

  • Jiahao Mao

    Tsinghua University

  • Bing-Lin Gu

    Tsinghua University

  • Yong Xu

    Tsinghua University, Department of Physics, Tsinghua University, Collaborative Innovation Center of Quantum Matter and State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, China

  • Wenhui Duan

    Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 100084, China, State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Department of physics, Tsinghua university, Tsinghua University