ARPES studies on antiferromagnetic topological insulators MnBi<sub>2n</sub>Te<sub>3n+1</sub>

ORAL

Abstract

The intrinsic magnetic topological insulators are believed to be an ideal platform for the study of various topological quantum phenomena, including the quantum anomalous Hall effect and topological magnetoelectric effect. Recently, a van der Waals layered structure, MnBi2Te4, was proposed to be the first intrinsic antiferromagnetic topological insulator. Furthermore, the related MnBi2nTe3n+1 (n=2,3) heterostructures are considered to be new magnetic topological insulators with weak interlayer magnetic coupling. In this talk, we report angle-resolved photoemission spectroscopy (ARPES) studies on a series of the heterostructures MnBi2nTe3n+1 (n=1,2,3). Our results reveal that the intrinsic magnetic topological insulators MnBi2nTe3n+1 host a rich platform to realize various novel topological states.

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Presenters

  • Yong Hu

    • University of Science and Technology of China

Authors

  • Yong Hu

    • University of Science and Technology of China

  • C.-F. Chen

    • ShanghaiTech University

  • Gang Xu

    • Huazhong University of Science and Technology
    • Huazhong University of Science & Technology

  • Xianhui Chen

    • University of Science and Technology of China
    • Nanjing University
    • physics department, University of Science and Technology of China

  • Junfeng He

    • University of Science and Technology of China