Direct visualization of edge state in even-layer MnBi2Te4 at zero magnetic field

Weiyan Lin; Yang Feng; Yongchao Wang; Jinjiang Zhu; Zichen Lian; Huanyu Zhang; Hao Li; Yang Wu; Chang Liu; Yihua Wang; Jinsong Zhang; Yayu Wang; Chui-Zhen Chen; Xiaodong Zhou; Jian Shen

doi:10.1038/s41467-022-35482-0

Nature Communications (Dec 2022)

Direct visualization of edge state in even-layer MnBi2Te4 at zero magnetic field

Weiyan Lin,
Yang Feng,
Yongchao Wang,
Jinjiang Zhu,
Zichen Lian,
Huanyu Zhang,
Hao Li,
Yang Wu,
Chang Liu,
Yihua Wang,
Jinsong Zhang,
Yayu Wang,
Chui-Zhen Chen,
Xiaodong Zhou,
Jian Shen

Affiliations

Weiyan Lin: State Key Laboratory of Surface Physics and Institute for Nanoelectronic Devices and Quantum Computing, Fudan University
Yang Feng: Department of Physics, Fudan University
Yongchao Wang: State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University
Jinjiang Zhu: Department of Physics, Fudan University
Zichen Lian: State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University
Huanyu Zhang: Department of Physics, Fudan University
Hao Li: School of Materials Science and Engineering, Tsinghua University
Yang Wu: Tsinghua-Foxconn Nanotechnology Research Center, Department of Physics, Tsinghua University
Chang Liu: State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University
Yihua Wang: Department of Physics, Fudan University
Jinsong Zhang: State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University
Yayu Wang: State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University
Chui-Zhen Chen: School of Physical Science and Technology, Soochow University
Xiaodong Zhou: State Key Laboratory of Surface Physics and Institute for Nanoelectronic Devices and Quantum Computing, Fudan University
Jian Shen: State Key Laboratory of Surface Physics and Institute for Nanoelectronic Devices and Quantum Computing, Fudan University

DOI: https://doi.org/10.1038/s41467-022-35482-0
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 7

Abstract

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Previous work has reported an axion insulator state in a layered topological antiferromagnet MnBi2Te4 evidenced by a zero Hall plateau. Here, in addition to the zero Hall plateau, the authors identify edge states in transport measurements at zero field which challenge the axion insulator interpretation.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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