# Experimental observation of spin−split energy dispersion in high-mobility single-layer graphene/WSe2 heterostructures

https://mdr.nims.go.jp/datasets/8b760de1-e4c4-4602-a713-1729b9e321cd

## File

- [s41699-022-00348-y.pdf](https://mdr.nims.go.jp/filesets/b7f0e228-b383-4361-99b3-7b7034f7539c/download) ([Detail](https://mdr.nims.go.jp/filesets/b7f0e228-b383-4361-99b3-7b7034f7539c.md))

## Id

8b760de1-e4c4-4602-a713-1729b9e321cd

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-27T05:08:39.860148Z

## Updated at

2025-02-27T23:31:01.746934Z

## Published at

2025-02-27T23:31:01.824075Z

## Doi



## First published url

https://doi.org/10.1038/s41699-022-00348-y

## Date published

2022-10-08

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Experimental observation of spin−split energy dispersion in high-mobility
    single-layer graphene/WSe2 heterostructures
  title_type: original
  lang: en

## Description

- description: We report the experimental determination of the band structure of single-layer
    graphene in the presence of strong proximity induced spin-orbit coupling. We achieve
    this in high-mobility hBN-encapsulated single-layer graphene and WSe2 heterostructures
    by measurements of quantum oscillations. We observe clear spin-splitting of the
    graphene bands along with a substantial increase in the Fermi velocity. Using
    a theoretical model with realistic parameters to fit our experimental data, we
    uncover confirmation of a bandgap opening and band inversion in the single-layer
    graphene. Further, we establish that the deviation of the low-energy band structure
    from pristine single-layer graphene is determined primarily by the valley-Zeeman
    SOC and Rashba SOC, with the Kane-Mele SOC being inconsequential. Despite the
    robust theoretical predictions and observations of band-splitting, a quantitative
    measure of the spin splitting of the valence and the conduction bands and the
    consequent low-energy dispersion relation in single-layer graphene was lacking.
    Our combined experimental and theoretical study fills this lacuna.
  description_type: abstract
  lang: und

## Creator

- name: Priya Tiwari
  role: author
- name: Mohit Kumar Jat
  role: author
- name: Adithi Udupa
  role: author
- name: Deepa S. Narang
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Diptiman Sen
  role: author
- name: Aveek Bid
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Spin-orbit coupling
  schema: not_defined
- subject: graphene
  schema: not_defined
- subject: band structure
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: npj 2D Materials and Applications
  issn: '23977132'
  volume: '6'
  issue: '1'
  article_number: '68'

## Conference



## Related item



## Funding

- identifier: DST/SJF/PSA01/2016-17
  funder_name: Department of Science and Technology, Ministry of Science and Technology
- identifier: JBR/2020/000043
  funder_name: Department of Science and Technology, Ministry of Science and Technology
- identifier: JPMXP0112101001
  funder_name: MEXT | JST | Accelerated Innovation Research Initiative Turning Top
    Science and Ideas into High-Impact Values

## Instrument



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## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Computational method



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## Fileset

- id: b7f0e228-b383-4361-99b3-7b7034f7539c
  filename: s41699-022-00348-y.pdf
  content_type: application/pdf
  size: 1319591
  md5: badd25c3081ea7e6ff284a6417019a6f

## Thumbnail

fileset_id: b7f0e228-b383-4361-99b3-7b7034f7539c
filename: s41699-022-00348-y.pdf