# Signatures of chiral superconductivity in rhombohedral graphene

https://mdr.nims.go.jp/datasets/4cd6582d-970e-4b82-98fb-47a160c33f87

## File

- [2025A01185G_final draft_for nims.docx](https://mdr.nims.go.jp/filesets/4bfdafb8-86b5-4de2-8212-8740ee2a448f/download) ([Detail](https://mdr.nims.go.jp/filesets/4bfdafb8-86b5-4de2-8212-8740ee2a448f.md))

## Id

4cd6582d-970e-4b82-98fb-47a160c33f87

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-06-30T02:07:30.432741Z

## Updated at

2026-07-03T02:11:54.744875Z

## Published at

2026-07-03T03:30:35.662528Z

## Doi



## First published url

https://doi.org/10.1038/s41586-025-09169-7

## Date published

2025-07-17

## Recorded date published

2025-7-17

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Signatures of chiral superconductivity in rhombohedral graphene
  title_type: original
  lang: en

## Description

- description: 'Chiral superconductors are unconventional superconducting states that
    break time-reversal symmetry spontaneously and typically feature Cooper pairing
    at non-zero angular momentum. Such states may host Majorana fermions and provide
    an important platform for topological physics research and fault-tolerant quantum
    computing. Despite intensive search and prolonged studies of several candidate
    systems, chiral superconductivity has remained elusive so far. Here we report
    the discovery of robust unconventional superconductivity in rhombohedral tetralayer
    and pentalayer graphene without moiré superlattice effects. We observed two superconducting
    states in the gate-induced flat conduction bands with Tc up to 300 mK and charge
    density ne down to 2.4 × 1011 cm−2 in five devices. Spontaneous time-reversal-symmetry
    breaking (TRSB) owing to orbital motion of the electron is found and several observations
    indicate the chiral nature of these superconducting states, including: (1) in
    the superconducting state, Rxx shows magnetic hysteresis in varying out-of-plane
    magnetic field B⊥—absent from all other superconductors; (2) the superconducting
    states are robust against in-plane magnetic field and are developed within a spin-polarized
    and valley-polarized quarter-metal (QM) phase; (3) the normal states show anomalous
    Hall signals at zero magnetic field and magnetic hysteresis. We also observed
    a critical B⊥ of 1.4 T, higher than any graphene superconductivity, which indicates
    a strong-coupling superconductivity close to the Bardeen–Cooper–Schrieffer (BCS)–Bose–Einstein
    condensate (BEC) crossover. Our observations establish a pure carbon material
    for the study of topological superconductivity, with the promise to explore Majorana
    modes and topological quantum computing.'
  description_type: abstract
  lang: en

## Creator

- name: Tonghang Han
  role: author
- name: Zhengguang Lu
  role: author
- name: Zach Hadjri
  role: author
- name: Lihan Shi
  role: author
- name: Zhenghan Wu
  role: author
- name: Wei Xu
  role: author
- name: Yuxuan Yao
  role: author
- name: Armel A. Cotten
  role: author
- name: Omid Sharifi Sedeh
  role: author
- name: Henok Weldeyesus
  role: author
- name: Jixiang Yang
  role: author
- name: Junseok Seo
  role: author
- name: Shenyong Ye
  role: author
- name: Muyang Zhou
  role: author
- name: Haoyang Liu
  role: author
- name: Gang Shi
  role: author
- name: Zhenqi Hua
  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: Peng Xiong
  role: author
- name: Dominik M. Zumbühl
  role: author
- name: Liang Fu
  role: author
- name: Long Ju
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Chiral superconductivity
  schema: not_defined
- subject: Rhombohedral graphene
  schema: not_defined
- subject: Majorana fermions
  schema: not_defined

## Rights

- description: 'This version of the article has been accepted for publication, after
    peer review (when applicable) and is subject to Springer Nature’s AM terms of
    use, but is not the Version of Record and does not reflect post-acceptance improvements,
    or any corrections. The Version of Record is available online at: https://doi.org/10.1038/s41586-025-09169-7.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2025-05-22
end_date: 2025-11-22

## Journal

- title: Nature
  issn: '00280836'
  volume: '643'
  issue: '8072'
  start_page: 654
  end_page: 661

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## Fileset

- id: 4bfdafb8-86b5-4de2-8212-8740ee2a448f
  filename: 2025A01185G_final draft_for nims.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 7365626
  md5: a20c297c0fbc2c58453259594c216f12

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filename: 2025A01185G_final draft_for nims.docx