# Unconventional correlated insulator in CrOCl-interfaced Bernal bilayer graphene

https://mdr.nims.go.jp/datasets/95831a7f-ac35-46dd-a96b-f8e8bcc762c9

## File

- [s41467-023-37769-2.pdf](https://mdr.nims.go.jp/filesets/db4e9eb0-5853-4b7c-a01a-2d0bf5332239/download) ([Detail](https://mdr.nims.go.jp/filesets/db4e9eb0-5853-4b7c-a01a-2d0bf5332239.md))

## Id

95831a7f-ac35-46dd-a96b-f8e8bcc762c9

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T07:29:13.105984Z

## Updated at

2025-02-15T03:30:48.426594Z

## Published at

2025-02-15T03:30:48.530868Z

## Doi



## First published url

https://doi.org/10.1038/s41467-023-37769-2

## Date published

2023-04-14

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Unconventional correlated insulator in CrOCl-interfaced Bernal bilayer graphene
  title_type: original
  lang: en

## Description

- description: For two decades, two-dimensional carbon species, including graphene,
    have been the core of research in pursuing next-generation logic applications
    beyond the silicon technology. Yet the opening of a gap in a controllable range
    of doping, whilst keeping high conductance outside of this gapped state, has remained
    a grand challenge in them thus far. Here we show that, by bringing Bernal-stacked
    bilayer graphene in contact with an anti-ferromagnetic insulator CrOCl, a strong
    insulating behavior is observed in a wide range of positive total electron doping
    ntot and effective displacement field Deff at low temperatures. Transport measurements
    further prove that such an insulating phase can be well described by the picture
    of an inter-layer excitonic state in bilayer graphene owing to electron-hole interactions.
    The consequential over 1 GΩ excitonic insulator can be readily killed by tuning
    Deff and/or ntot, and the system recovers to a high mobility graphene with a sheet
    resistance of less than 100 Ω. It thus yields transistors with "ON-OFF" ratios
    reaching 10^7, and a CMOS-like graphene logic inverter is demonstrated. Our findings
    of the robust insulating phase in bilayer graphene may be a leap forward to fertilize
    the future carbon computing.
  description_type: abstract
  lang: und

## Creator

- name: Kaining Yang
  role: author
- name: Xiang Gao
  role: author
- name: Yaning Wang
  role: author
- name: Tongyao Zhang
  role: author
- name: Yuchen Gao
  role: author
- name: Xin Lu
  role: author
- name: Shihao Zhang
  role: author
- name: Jianpeng Liu
  role: author
- name: Pingfan Gu
  role: author
- name: Zhaoping Luo
  role: author
- name: Runjie Zheng
  role: author
- name: Shimin Cao
  role: author
- name: Hanwen Wang
  role: author
- name: Xingdan Sun
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Xiuyan Li
  role: author
- name: Jing Zhang
  role: author
- name: Xi Dai
  role: author
- name: Jian-Hao Chen
  role: author
- name: Yu Ye
  role: author
- name: Zheng Han
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Graphene gapped states
  schema: not_defined
- subject: CrOCl
  schema: not_defined
- subject: electron-electron interactions
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '14'
  issue: '1'
  article_number: '2136'

## Conference



## Related item



## Funding

- identifier: '92265203'
  funder_name: National Natural Science Foundation of China

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: db4e9eb0-5853-4b7c-a01a-2d0bf5332239
  filename: s41467-023-37769-2.pdf
  content_type: application/pdf
  size: 1924818
  md5: 969ce330962acd1459061428ee455df2

## Thumbnail

fileset_id: db4e9eb0-5853-4b7c-a01a-2d0bf5332239
filename: s41467-023-37769-2.pdf