# Suppression of symmetry-breaking correlated insulators in a rhombohedral trilayer graphene superlattice

https://mdr.nims.go.jp/datasets/a821c4d9-2426-40fb-9f8a-038133ac2502

## File

- [s41467-024-54200-6.pdf](https://mdr.nims.go.jp/filesets/9504a1ec-aef4-4217-976a-49ece8fef91e/download) ([Detail](https://mdr.nims.go.jp/filesets/9504a1ec-aef4-4217-976a-49ece8fef91e.md))

## Id

a821c4d9-2426-40fb-9f8a-038133ac2502

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-05T07:00:51.651569Z

## Updated at

2025-02-06T03:30:53.735326Z

## Published at

2025-02-06T03:30:53.819613Z

## Doi



## First published url

https://doi.org/10.1038/s41467-024-54200-6

## Date published

2024-11-11

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Suppression of symmetry-breaking correlated insulators in a rhombohedral
    trilayer graphene superlattice
  title_type: original
  lang: en

## Description

- description: 'In graphene moiré superlattices, while various gapped phases like
    correlated/(fractional) Chern insulators can be ascribed to spontaneous symmetry
    breaking, isospin Pomeranchuk effect in the gapless phase points out the coexistence
    of localized magnetic moment and itinerate electrons, consistent with the recent
    topological heavy fermion model based on which a Kondo lattice may fundamentally
    change the understanding of twisted bilayer graphene. However, so far the Pomeranchuk
    effect has only been observed at v=+/-1 (one electron/hole per cell), leaving
    open questions such as why or whether the effect is unique to this filling factor.
    Here by studying a rhombohedral trilayer graphene superlattice, we report that
    at v=-3 the gapless Fermi liquid changes to a correlated peak at elevated temperatures
    or in parallel magnetic fields. The Pomeranchuk effect also emerges at v=-1 and
    -2 in specific ranges of displacement fields. Furthermore, the Fermi-liquid ground
    state is also found to exhibit superconducting-like critical behaviors, probably
    resulting from out-of-equilibrium electron transport on an extremely flat Fermi
    sheet. Our results greatly expand the scope for observing the Pomeranchuk effect,
    i.e., around the phase boundary where the Stoner criteria is marginally satisfied
    and the flavor polarization order strongly fluctuates, shedding light on a universal
    physical model of flat '
  description_type: abstract
  lang: und

## Creator

- name: Xiangyan Han
  role: author
- name: Yuting Zou
  role: author
- name: Qianling Liu
  role: author
- name: Zhiyu Wang
  role: author
- name: Ruirui Niu
  role: author
- name: Zhuangzhuang Qu
  role: author
- name: Zhuoxian Li
  role: author
- name: Chunrui Han
  role: author
  orcid: https://orcid.org/0000-0002-6257-1103
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
- name: Baojuan Dong
  role: author
- name: Zhida Song
  role: author
- name: Jinhai Mao
  role: author
  orcid: https://orcid.org/0000-0002-9034-3642
- name: Zheng Han
  role: author
  orcid: https://orcid.org/0000-0001-5721-6206
- name: Zhi Gang Cheng
  role: author
  orcid: https://orcid.org/0000-0002-9449-6734
- name: Zizhao Gan
  role: author
- name: Jianming Lu
  role: author
  orcid: https://orcid.org/0000-0002-1558-4040

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Isospin flavor polarization
  schema: not_defined
- subject: rhombohedral trilayer graphene
  schema: not_defined
- subject: symmetry-breaking phases
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '15'
  issue: '1'
  article_number: '9765'

## Conference



## Related item



## Funding

- identifier: '11974027'
  funder_name: National Natural Science Foundation of China
- identifier: '4222084'
  funder_name: Natural Science Foundation of Beijing Municipality

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Process for specimen treatment



## Computational method



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## Fileset

- id: 9504a1ec-aef4-4217-976a-49ece8fef91e
  filename: s41467-024-54200-6.pdf
  content_type: application/pdf
  size: 3091247
  md5: 7e5b6da6ebd2fc0c9628a21c48a0022b

## Thumbnail

fileset_id: 9504a1ec-aef4-4217-976a-49ece8fef91e
filename: s41467-024-54200-6.pdf