# Andreev Reflection in the Fractional Quantum Hall State

https://mdr.nims.go.jp/datasets/fa8e90ba-b858-4975-b3d3-8f27255c550b

## File

- [PhysRevX.12.021057.pdf](https://mdr.nims.go.jp/filesets/9caa8864-ea36-41e1-a994-ca75ee586b73/download) ([Detail](https://mdr.nims.go.jp/filesets/9caa8864-ea36-41e1-a994-ca75ee586b73.md))

## Id

fa8e90ba-b858-4975-b3d3-8f27255c550b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-27T07:35:23.402686Z

## Updated at

2025-02-28T07:30:40.975678Z

## Published at

2025-02-28T07:30:41.078339Z

## Doi



## First published url

https://doi.org/10.1103/physrevx.12.021057

## Date published

2022-06-14

## Recorded date published

2022-6

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Andreev Reflection in the Fractional Quantum Hall State
  title_type: original
  lang: en

## Description

- description: We construct high-quality graphene-based van der Waals devices with
    narrow superconducting niobium nitride (NbN) electrodes, in which superconductivity
    and a robust fractional quantum Hall (FQH) state coexist. We find a possible signature
    for crossed Andreev reflection (CAR) across the superconductor separating two
    FQH edges. Our observed CAR probabilities in the particlelike fractional fillings
    are markedly higher than those in the integer and hole-conjugate fractional fillings
    and depend strongly on temperature and magnetic field unlike the other fillings.
    Further, we find a filling-independent CAR probability in integer fillings, which
    we attribute to spin-orbit coupling in NbN allowing for Andreev reflection between
    spin-polarized edges. These results provide a route to realize novel topological
    superconducting phases in FQH-superconductor hybrid devices based on graphene
    and NbN.
  description_type: abstract
  lang: und

## Creator

- name: Önder Gül
  role: author
- name: Yuval Ronen
  role: author
- name: Si Young Lee
  role: author
- name: Hassan Shapourian
  role: author
- name: Jonathan Zauberman
  role: author
- name: Young Hee Lee
  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: Ashvin Vishwanath
  role: author
- name: Amir Yacoby
  role: author
- name: Philip Kim
  role: author

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Graphene-based devices
  schema: not_defined
- subject: superconducting niobium nitride
  schema: not_defined
- subject: fractional quantum Hall
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Physical Review X
  issn: '21603308'
  volume: '12'
  issue: '2'
  article_number: '021057'

## Conference



## Related item



## Funding

- identifier: '651440'
  funder_name: Simons Foundation
- funder_name: Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- identifier: DE-SC0012260
  funder_name: U.S. Department of Energy
- identifier: DE-SC0019300
  funder_name: U.S. Department of Energy
- identifier: '1936263'
  funder_name: National Science Foundation
- identifier: DMR-1708688
  funder_name: National Science Foundation
- identifier: DMR-1231319
  funder_name: National Science Foundation
- identifier: ECS-00335765
  funder_name: National Science Foundation
- identifier: IBS-R011-D1
  funder_name: Institute for Basic Science
- identifier: JPMXP0112101001
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: 19H05790
  funder_name: Japan Society for the Promotion of Science
- identifier: JP20H00354
  funder_name: Japan Society for the Promotion of Science

## Instrument



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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: 9caa8864-ea36-41e1-a994-ca75ee586b73
  filename: PhysRevX.12.021057.pdf
  content_type: application/pdf
  size: 5782296
  md5: 8fccb9098462d912d028f58a338c76f6

## Thumbnail

fileset_id: 9caa8864-ea36-41e1-a994-ca75ee586b73
filename: PhysRevX.12.021057.pdf