# Quasiparticle and superfluid dynamics in Magic-Angle Graphene

https://mdr.nims.go.jp/datasets/c1566cb3-e6b6-4837-8375-82fd4f0d656f

## File

- [s41467-025-58325-0.pdf](https://mdr.nims.go.jp/filesets/6c864cd9-501c-4196-b10b-563e3d438014/download) ([Detail](https://mdr.nims.go.jp/filesets/6c864cd9-501c-4196-b10b-563e3d438014.md))

## Id

c1566cb3-e6b6-4837-8375-82fd4f0d656f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-05-23T06:44:20.189208Z

## Updated at

2026-05-24T23:54:11.114724Z

## Published at

2026-05-25T01:29:21.712024Z

## Doi



## First published url

https://doi.org/10.1038/s41467-025-58325-0

## Date published

2025-05-08

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Quasiparticle and superfluid dynamics in Magic-Angle Graphene
  title_type: original
  lang: en

## Description

- description: Elucidating the character and origin of correlated states in 2D materials
    presents an outstanding experimental challenge, with most conventional probes
    not applicable. Here, we demonstrate the use of non-equilibrium, dynamical experiments,
    to characterize the low-temperature electronic states of Magic-Angle Twisted Bilayer
    Graphene (MATBG). We use a gate-defined, radio frequency-biased, Josephson junction
    to probe the electronic dynamics of the material at tunable electron density and
    cryogenic temperatures. We find relaxational dynamics of supercurrent with rates
    of the order of few MHz throughout the phase diagram. These rates are attributed
    to thermalization of quasiparticles via electron-phonon interactions and inductive
    response of the Cooper pair condensate. We develop a model of the junction response
    allowing to deduce electron-phonon coupling, kinetic inductance and specific heat
    of MATBG from the data. The results favor highly anisotropic or nodal super- conductivity
    and establish an easy-to-implement method for characterizing thermal and superfluid
    properties of superconducting 2D materials.
  description_type: abstract
  lang: und

## Creator

- name: Elías Portolés
  role: author
- name: Marta Perego
  role: author
- name: Pavel A. Volkov
  role: author
- name: Mathilde Toschini
  role: author
- name: Yana Kemna
  role: author
- name: Alexandra Mestre-Torà
  role: author
- name: Giulia Zheng
  role: author
- name: Artem O. Denisov
  role: author
- name: Folkert K. de Vries
  role: author
- name: Peter Rickhaus
  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: J. H. Pixley
  role: author
- name: Thomas Ihn
  role: author
- name: Klaus Ensslin
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: 'magic-angle graphene (MATBG)
    '
  schema: not_defined
- subject: 'quasiparticle dynamics
    '
  schema: not_defined
- subject: superfluid dynamics
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/
  date_licensed: 2025-05-08

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '16'
  issue: '1'
  article_number: '4273'

## Conference



## Related item



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## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



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## Computational method



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## Fileset

- id: 6c864cd9-501c-4196-b10b-563e3d438014
  filename: s41467-025-58325-0.pdf
  content_type: application/pdf
  size: 1662321
  md5: 7bf0c454dd19104204a24288a7f820e1

## Thumbnail

fileset_id: 6c864cd9-501c-4196-b10b-563e3d438014
filename: s41467-025-58325-0.pdf