# Quasi-Φ<sub>0</sub>-Periodic Supercurrent at Quantum Hall Transitions

https://mdr.nims.go.jp/datasets/94dddf6b-d695-42ca-9013-f92993c1f90a

## File

- [villani-et-al-2025-quasi-φ0-periodic-supercurrent-at-quantum-hall-transitions.pdf](https://mdr.nims.go.jp/filesets/d241f269-bbff-4117-9061-d7e312221b37/download) ([Detail](https://mdr.nims.go.jp/filesets/d241f269-bbff-4117-9061-d7e312221b37.md))

## Id

94dddf6b-d695-42ca-9013-f92993c1f90a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-05-23T06:41:42.805369Z

## Updated at

2026-05-24T23:51:45.221913Z

## Published at

2026-05-25T01:29:20.563001Z

## Doi



## First published url

https://doi.org/10.1021/acsnano.5c05294

## Date published

2025-08-05

## Recorded date published

2025-8-5

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Quasi-Φ<sub>0</sub>-Periodic Supercurrent at Quantum Hall Transitions
  title_type: original
  lang: en

## Description

- description: The combination of superconductivity and quantum Hall (QH) effect is
    regarded as a key milestone towards topological quantum computation in solid-state
    systems. Recent results based on quantum interference indicate that QH edge states
    can effectively mediate a supercurrent across high-quality graphene weak links.
    In this work we report the observation of a supercurrent tied to transitions between
    adjacent QH plateaus, where transport paths develop within the compressible two-dimensional
    bulk. We employ a back-gated graphene Josephson junction, comprising high-mobility
    CVD- grown graphene encapsulated in hexagonal Boron Nitride (hBN) and contacted
    by Nb leads. We detect superconducting pockets persisting beyond the QH onset,
    up to 2.4 T, hence approaching the upper critical field of the Nb contacts. We
    reveal an approximate Φ0 = h/2e periodicity of the QH-supercurrent as a function
    of the magnetic field, indicating superconducting interference in a proximitized
    percolative phase. These results establish a possible experimental platform to
    investigate the transport regime of percolative supercurrent, exploiting the flexibility
    of van der Waals devices.
  description_type: abstract
  lang: und

## Creator

- name: Ivan Villani
  role: author
- name: Matteo Carrega
  role: author
- name: Alessandro Crippa
  role: author
- name: Elia Strambini
  role: author
- name: Francesco Giazotto
  role: author
- name: Vaidotas Mišeikis
  role: author
- name: Camilla Coletti
  role: author
- name: Fabio Beltram
  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: Stefan Heun
  role: author
- name: Sergio Pezzini
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: supercurrent
  schema: not_defined
- subject: 'quantum Hall effect
    '
  schema: not_defined
- subject: Josephson junction
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-07-24

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: ACS Nano
  issn: 1936086X
  volume: '19'
  issue: '30'
  start_page: 27370
  end_page: 27378

## Conference



## Related item



## Funding

- identifier: '101057977'
  funder_name: HORIZON EUROPE European Innovation Council
- identifier: JPMJCR24A5
  funder_name: Core Research for Evolutional Science and Technology
- identifier: '964398'
  funder_name: H2020 Future and Emerging Technologies
- identifier: 21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: 23H02052
  funder_name: Japan Society for the Promotion of Science
- funder_name: Japan Science and Technology Agency
- identifier: PE0000023-NQSTI
  funder_name: Ministero dell'Universit? e della Ricerca

## 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: d241f269-bbff-4117-9061-d7e312221b37
  filename: villani-et-al-2025-quasi-φ0-periodic-supercurrent-at-quantum-hall-transitions.pdf
  content_type: application/pdf
  size: 6186614
  md5: dd49ee0233018a73d77043b23e261f6e

## Thumbnail

fileset_id: d241f269-bbff-4117-9061-d7e312221b37
filename: villani-et-al-2025-quasi-φ0-periodic-supercurrent-at-quantum-hall-transitions.pdf