# Observation of current whirlpools in graphene at room temperature

https://mdr.nims.go.jp/datasets/eaf77d6d-6cd2-4bab-bbda-3e36d6c6a1b6

## File

- [2024A00476G_adj2167_ArticleContent_combined.pdf](https://mdr.nims.go.jp/filesets/03587ef6-e8bc-4ff4-ad05-6a5f9f9caa8a/download) ([Detail](https://mdr.nims.go.jp/filesets/03587ef6-e8bc-4ff4-ad05-6a5f9f9caa8a.md))

## Id

eaf77d6d-6cd2-4bab-bbda-3e36d6c6a1b6

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-07-23T00:54:04.723969Z

## Updated at

2025-07-23T07:30:35.820864Z

## Published at

2025-07-23T07:20:22.267006Z

## Doi



## First published url

https://doi.org/10.1126/science.adj2167

## Date published

2024-04-26

## Recorded date published

2024-4-26

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Observation of current whirlpools in graphene at room temperature
  title_type: original
  lang: en

## Description

- description: Electron-electron interactions in high-mobility conductors can give
    rise to transport signatures resembling those described by classical hydrodynamics.
    Using a nanoscale scanning magnetometer, we image a striking hydrodynamic transport
    patern – stationary current vortices – in a monolayer graphene device at room
    temperature. By measuring devices with increasing characteristic size, we observe
    the disappearance of the current vortex and thus verify a prediction of the hydrodynamic
    model. We further observe that vortex flow is present for both hole- and electron-dominated
    transport regimes, but disappears in the ambipolar regime. We atribute this effect
    to a reduction of the vorticity diffusion length near charge neutrality. Our work
    showcases the power of local imaging techniques for unveiling exotic mesoscopic
    transport phenomena.
  description_type: abstract
  lang: en

## Creator

- name: Marius L. Palm
  role: author
- name: Chaoxin Ding
  role: author
- name: William S. Huxter
  role: author
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Christian L. Degen
  role: author

## Contact agent



## Publisher

organization: American Association for the Advancement of Science (AAAS)

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## Keyword

- subject: hydrodynamic transport
  schema: not_defined
- subject: current vortex
  schema: not_defined
- subject: graphene device
  schema: not_defined

## Rights

- description: This is the author’s version of the work. It is posted here by permission
    of the AAAS for personal use, not for redistribution. The definitive version was
    published in Science on Volume 384, 25 Apr 2024, DOI:10.1126/science.adj2167.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Science
  issn: '10959203'
  volume: '384'
  issue: '6694'
  start_page: 465
  end_page: 469

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## Thumbnail

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