# Spin-valley locked excited states spectroscopy in a one-particle bilayer graphene quantum dot

https://mdr.nims.go.jp/datasets/7f6229ce-48ac-4f10-a033-4275d8c4e2a7

## File

- [s41467-024-54121-4.pdf](https://mdr.nims.go.jp/filesets/1a070f05-5f9b-4198-9a49-52b0d2606049/download) ([Detail](https://mdr.nims.go.jp/filesets/1a070f05-5f9b-4198-9a49-52b0d2606049.md))

## Id

7f6229ce-48ac-4f10-a033-4275d8c4e2a7

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-14T05:36:39.805483Z

## Updated at

2026-02-16T07:30:18.546348Z

## Published at

2026-02-16T04:57:31.366772Z

## Doi



## First published url

https://doi.org/10.1038/s41467-024-54121-4

## Date published

2024-11-09

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Spin-valley locked excited states spectroscopy in a one-particle bilayer
    graphene quantum dot
  title_type: original
  lang: en

## Description

- description: We measured the spectrum of a single-carrier bilayer graphene quantum
    dot as a function of both parallel and perpendicular magnetic field, using a time-resolved
    charge detection technique that gives access to individual tunnel events. Thanks
    to our unprecedented resolution of 4 μeV, we could distinguish all four of the
    dot’s energy levels, in particular in the range of magnetic field where the first
    and second excited states cross (B⊥ <∼ 100 mT). We thereby experimentally establish
    the, hitherto simply extrapolated, single-charge carrier spectrum picture and
    provide a new upper bound for the inter-valley mixing, equal to our energy resolution.
  description_type: abstract
  lang: und

## Creator

- name: Hadrien Duprez
  role: author
- name: Solenn Cances
  role: author
- name: Andraz Omahen
  role: author
- name: Michele Masseroni
  role: author
- name: Max J. Ruckriegel
  role: author
- name: Christoph Adam
  role: author
- name: Chuyao Tong
  role: author
- name: Rebekka Garreis
  role: author
- name: Jonas D. Gerber
  role: author
- name: Wister Huang
  role: author
- name: Lisa Gächter
  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: Thomas Ihn
  role: author
- name: Klaus Ensslin
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: 'bilayer graphene quantum dot
    '
  schema: not_defined
- subject: 'spin-valley locking
    '
  schema: not_defined
- subject: 'valley qubit
    '
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/
  date_licensed: 2024-11-09

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '15'
  issue: '1'
  article_number: '9717'

## Conference



## Related item



## Funding

- identifier: 51NF40-185902
  funder_name: Swiss National Science Foundation | National Center of Competence in
    Research Quantum Science and Technology
- identifier: 21H05233 and 23H02052
  funder_name: MEXT | 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: 1a070f05-5f9b-4198-9a49-52b0d2606049
  filename: s41467-024-54121-4.pdf
  content_type: application/pdf
  size: 1320127
  md5: 6b844fd389f375e5d85d5ad9562f9448

## Thumbnail

fileset_id: 1a070f05-5f9b-4198-9a49-52b0d2606049
filename: s41467-024-54121-4.pdf