# Electric-Field-Tunable Spin–Orbit Gap in a Bilayer Graphene/WSe<sub>2</sub> Quantum Dot

https://mdr.nims.go.jp/datasets/a635b882-840e-47f6-b46e-a10d2b89159e

## File

- [2025A00932G_Spin_Orbit_BLG_WSe2-arxive.pdf](https://mdr.nims.go.jp/filesets/29d0092c-185f-47de-a0d5-85d9c09e0473/download) ([Detail](https://mdr.nims.go.jp/filesets/29d0092c-185f-47de-a0d5-85d9c09e0473.md))

## Id

a635b882-840e-47f6-b46e-a10d2b89159e

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-06-24T00:30:09.704531Z

## Updated at

2026-06-26T08:05:35.751511Z

## Published at

2026-06-26T09:28:48.771219Z

## Doi



## First published url

https://doi.org/10.1021/acs.nanolett.5c02229

## Date published

2025-07-02

## Recorded date published

2025-7-2

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Electric-Field-Tunable Spin–Orbit Gap in a Bilayer Graphene/WSe<sub>2</sub>
    Quantum Dot
  title_type: original
  lang: en

## Description

- description: We report on the investigation of proximity-induced spin–orbit coupling
    (SOC) in a heterostructure of bilayer graphene (BLG) and tungsten diselenide (WSe2).
    A BLG quantum dot (QD) in the few-particle regime acts as a sensitive probe for
    induced SOC. Finite bias and magnetotransport spectroscopy measurements reveal
    a significantly enhanced SOC that decreases with the applied displacement field,
    distinguishing it from pristine BLG. Furthermore, our measurements demonstrate
    a reduced valley g factor at larger displacement fields, consistent with weaker
    lateral confinement of the QD. Our findings show evidence of the influence of
    WSe2 across BLG layers, driven by reduced real-space confinement and increased
    layer localization of the QD states on the BLG layer distant to the WSe2 at higher
    displacement fields. This study demonstrates the electrostatic tunability of the
    spin–orbit gap in BLG/WSe2 heterostructures, which is especially relevant for
    the field of spintronics and future spin qubit control in BLG QDs.
  description_type: abstract
  lang: en

## Creator

- name: H. Dulisch
  role: author
- name: D. Emmerich
  role: author
- name: E. Icking
  role: author
- name: K. Hecker
  role: author
- name: S. Möller
  role: author
- name: L. Müller
  role: author
- name: K. Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: T. Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: C. Volk
  role: author
- name: C. Stampfer
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)
ror: https://ror.org/

## Managing organization



## Keyword

- subject: Spin-orbit coupling
  schema: not_defined
- subject: Graphene heterostructure
  schema: not_defined
- subject: Spin qubit
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Article
    that appeared in final form in Nano Letters, copyright © 2025 American Chemical
    Society. To access the final published article, see https://doi.org/10.1021/acs.nanolett.5c02229.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2025-06-18
end_date: 2026-06-18

## Journal

- title: Nano Letters
  issn: '15306984'
  volume: '25'
  issue: '26'
  start_page: 10549
  end_page: 10555

## Conference



## Related item



## Funding

- identifier: '820254'
  funder_name: European Research Council
- funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: '535377524'
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: EXC 2004/1 - 390534769
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: JPMJCR24A5
  funder_name: Core Research for Evolutional Science and Technology
- identifier: 21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: 23H02052
  funder_name: Japan Society for the Promotion of Science

## 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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## Custom property



## Fileset

- id: 29d0092c-185f-47de-a0d5-85d9c09e0473
  filename: 2025A00932G_Spin_Orbit_BLG_WSe2-arxive.pdf
  content_type: application/pdf
  size: 3243086
  md5: b1afe4919a042ae7dbe80cd4dab024b1

## Thumbnail

fileset_id: 29d0092c-185f-47de-a0d5-85d9c09e0473
filename: 2025A00932G_Spin_Orbit_BLG_WSe2-arxive.pdf