# Mesoscopic Klein-Schwinger effect in graphene

https://mdr.nims.go.jp/datasets/e22fb4d3-2924-4ba9-8c5f-729bb274aa8c

## Files

- [s41567-023-01978-9.pdf](https://mdr.nims.go.jp/filesets/4009b98e-e13c-44ff-8fb1-a91cd2f9488a/download) ([Detail](https://mdr.nims.go.jp/filesets/4009b98e-e13c-44ff-8fb1-a91cd2f9488a.md))

## Id

e22fb4d3-2924-4ba9-8c5f-729bb274aa8c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-18T06:14:34.885885Z

## Updated at

2025-02-23T13:48:23.165303Z

## Published at

2025-02-23T13:48:23.270165Z

## Doi



## First published url

https://doi.org/10.1038/s41567-023-01978-9

## Date published

2023-03-09

## Recorded date published

2023-6

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Mesoscopic Klein-Schwinger effect in graphene
  title_type: original
  lang: en

## Description

- description: Strong electric field annihilation by particle-antiparticle pair creation,
    described in detail by Sauter and Schwinger, is a basic non-perturbative prediction
    of quantum electrodynamics. Its experimental demonstration remains elusive as
    Schwinger fields ES are beyond reach even for the light electron-positron pairs.
    Here we put forward a mesoscopic variant of the Schwinger effect in graphene,
    which hosts Dirac fermions with electron-hole symmetry. Using DC transport and
    RF noise, we report on univer- sal 1d-Schwinger conductance at the pinch-off of
    ballistic graphene transistors. Strong pinch-off electric fields are concentrated
    in a length Λ >∼ 0.1 μm at the transistor drain, and induce Schwinger e-h pair
    creation at saturation, for a Schwinger voltage VS = ES Λ on the order of the
    pinch-off voltage. This Klein-Schwinger effect (KSE) precedes an instability toward
    an ohmic Zener regime, which is rejected at twice the pinch-off voltage in long
    devices. The KSE not only gives clues to current saturation limits in ballistic
    graphene, but also opens new routes for quantum electrodynamic experiments in
    the laboratory.
  description_type: abstract
  lang: und

## Creator

- name: A. Schmitt
  role: author
- name: P. Vallet
  role: author
- name: D. Mele
  role: author
- name: M. Rosticher
  role: author
- name: T. Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: K. Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: E. Bocquillon
  role: author
- name: G. Fève
  role: author
- name: J. M. Berroir
  role: author
- name: C. Voisin
  role: author
- name: J. Cayssol
  role: author
- name: M. O. Goerbig
  role: author
- name: J. Troost
  role: author
- name: E. Baudin
  role: author
- name: B. Plaçais
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Schwinger effect
  schema: not_defined
- subject: graphene
  schema: not_defined
- subject: Dirac fermions
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nature Physics
  issn: '17452481'
  volume: '19'
  issue: '6'
  start_page: 830
  end_page: 835

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## Fileset

- id: 4009b98e-e13c-44ff-8fb1-a91cd2f9488a
  filename: s41567-023-01978-9.pdf
  content_type: application/pdf
  size: 2238225
  md5: c1ce7bc785fa07b7f22ee9d69e4b1baa

## Thumbnail

fileset_id: 4009b98e-e13c-44ff-8fb1-a91cd2f9488a
filename: s41567-023-01978-9.pdf