Magnetic-field-induced robust zero Hall plateau state in MnBi2Te4 Chern insulator

Chang Liu, Yongchao Wang, Ming Yang, Jiahao Mao, Hao Li, Yaoxin Li, Jiaheng Li, Haipeng Zhu, Junfeng Wang, Liang Li, Yang Wu, Yong Xu (), Jinsong Zhang () and Yayu Wang ()
Additional contact information
Chang Liu: Tsinghua University
Yongchao Wang: Tsinghua University
Ming Yang: Huazhong University of Science and Technology
Jiahao Mao: Tsinghua University
Hao Li: Tsinghua University
Yaoxin Li: Tsinghua University
Jiaheng Li: Tsinghua University
Haipeng Zhu: Huazhong University of Science and Technology
Junfeng Wang: Huazhong University of Science and Technology
Liang Li: Huazhong University of Science and Technology
Yang Wu: Tsinghua University
Yong Xu: Tsinghua University
Jinsong Zhang: Tsinghua University
Yayu Wang: Tsinghua University

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract The intrinsic antiferromagnetic topological insulator MnBi2Te4 provides an ideal platform for exploring exotic topological quantum phenomena. Recently, the Chern insulator and axion insulator phases have been realized in few-layer MnBi2Te4 devices at low magnetic field regime. However, the fate of MnBi2Te4 in high magnetic field has never been explored in experiment. In this work, we report transport studies of exfoliated MnBi2Te4 flakes in pulsed magnetic fields up to 61.5 T. In the high-field limit, the Chern insulator phase with Chern number C = −1 evolves into a robust zero Hall resistance plateau state. Nonlocal transport measurements and theoretical calculations demonstrate that the charge transport in the zero Hall plateau state is conducted by two counter-propagating edge states that arise from the combined effects of Landau levels and large Zeeman effect in strong magnetic fields. Our result demonstrates the intricate interplay among intrinsic magnetic order, external magnetic field, and nontrivial band topology in MnBi2Te4.

Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/s41467-021-25002-x Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25002-x

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-021-25002-x

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().