# Electric-Field Switchable Chirality in Rhombohedral Graphene Chern Insulators Stabilized by Tungsten Diselenide

https://mdr.nims.go.jp/datasets/354581b1-0bb5-44a5-9078-cb16ee6c36d7

## File

- [PhysRevX.15.011052.pdf](https://mdr.nims.go.jp/filesets/8137dd2d-8b98-42ef-a6bf-21dfb1f1c28b/download) ([Detail](https://mdr.nims.go.jp/filesets/8137dd2d-8b98-42ef-a6bf-21dfb1f1c28b.md))

## Id

354581b1-0bb5-44a5-9078-cb16ee6c36d7

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-15T02:06:59.659637Z

## Updated at

2026-02-16T23:30:39.713193Z

## Published at

2026-02-16T09:00:49.932788Z

## Doi



## First published url

https://doi.org/10.1103/physrevx.15.011052

## Date published

2025-03-10

## Recorded date published

2025-3

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Electric-Field Switchable Chirality in Rhombohedral Graphene Chern Insulators
    Stabilized by Tungsten Diselenide
  title_type: original
  lang: en

## Description

- description: Chern insulators host topologically protected chiral edge currents
    with quantized conductance characterized by their Chern number. Switching the
    chirality of a Chern insulator, namely, the direction of the edge current, is
    highly challenging due to topologically forbidden backscattering but is of considerable
    importance for the design of topological devices. Nevertheless, this can be achieved
    by reversing the sign of the Chern number. Here, we report electrically switchable
    chirality in rhombohedral multilayer graphene-based Chern insulators through a
    topological phase transition. By introducing moire ́ superlattices in rhombohedral
    heptalayer graphene, we observe a cascade of topological phase transitions at
    quarter electron filling of a moire ́ band with the Chern number tunable from
    −1, 1, to 2. Furthermore, integrating monolayer tungsten diselenide at the moire
    ́less interface of rhombohedral decalayer graphene and hexagonal boron nitride
    superlattices stabilizes the Chern insulators, enabling quantized anomalous Hall
    resistance of h=2e2. Remarkably, the Chern number can be electrically switched
    using displacement fields, leading to a topological phase transition from −1 to
    2. Our work establishes rhombohedral multilayer graphene moire ́ superlattices
    as a versatile platform for topological engineering, with switchable chirality
    offering significant promise for integrating chiral edge currents into topological
    electronic circuits.
  description_type: abstract
  lang: und

## Creator

- name: Jing Ding
  role: author
- name: Hanxiao Xiang
  role: author
- name: Jiannan Hua
  role: author
- name: Wenqiang Zhou
  role: author
- name: Naitian Liu
  role: author
- name: Le Zhang
  role: author
- name: Na Xin
  role: author
- name: Bing Wu
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Zdeněk Sofer
  role: author
- name: Wei Zhu
  role: author
- name: Shuigang Xu
  role: author

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: 'Chern insulators
    '
  schema: not_defined
- subject: switchable chirality
  schema: not_defined
- subject: rhombohedral graphene
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-03-10

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review X
  issn: '21603308'
  volume: '15'
  issue: '1'
  article_number: '011052'

## Conference



## Related item



## Funding

- identifier: '12274354'
  funder_name: National Natural Science Foundation of China
- identifier: '12474144'
  funder_name: National Natural Science Foundation of China
- identifier: LR24A040003
  funder_name: Natural Science Foundation of Zhejiang Province
- identifier: XHD23A2001
  funder_name: Natural Science Foundation of Zhejiang Province
- identifier: 2022SDXHDX0005
  funder_name: Key Research and Development Program of Zhejiang Province
- funder_name: Westlake University
- identifier: 21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: 23H02052
  funder_name: Japan Society for the Promotion of Science
- funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: LUAUS23049
  funder_name: Ministry of Education, Youth and Sports
- identifier: CZ.02.1.01/0.0/0.0/15_003/0000444
  funder_name: European Regional Development Fund
- funder_name: World Premier International Research Center Initiative

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Fileset

- id: 8137dd2d-8b98-42ef-a6bf-21dfb1f1c28b
  filename: PhysRevX.15.011052.pdf
  content_type: application/pdf
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  md5: 34adb19382f26a06e8c19ba0ccc12404

## Thumbnail

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filename: PhysRevX.15.011052.pdf