# Layer-Dependent Interaction Effects in the Electronic Structure of Twisted Bilayer Graphene Devices

https://mdr.nims.go.jp/datasets/88ba2c46-324d-4216-b82d-7ca12dcfa598

## File

- [acs.nanolett.3c00253.pdf](https://mdr.nims.go.jp/filesets/cf0f2b6a-9cfa-48f7-bc84-79b1d4c09214/download) ([Detail](https://mdr.nims.go.jp/filesets/cf0f2b6a-9cfa-48f7-bc84-79b1d4c09214.md))

## Id

88ba2c46-324d-4216-b82d-7ca12dcfa598

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T05:52:05.217854Z

## Updated at

2025-02-14T07:31:18.952905Z

## Published at

2025-02-14T07:31:19.024213Z

## Doi



## First published url

https://doi.org/10.1021/acs.nanolett.3c00253

## Date published

2023-08-09

## Recorded date published

2023-8-9

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Layer-Dependent Interaction Effects in the Electronic Structure of Twisted
    Bilayer Graphene Devices
  title_type: original
  lang: en

## Description

- description: Near the magic angle, strong correlations drive many intriguing phases
    in twisted bilayer graphene (tBG) including unconventional superconductivity and
    chern insulation. Whether correlations can tune symmetry-breaking phases in tBG
    at intermediate (>2º) twist angles remains an open fun- damental question. Here,
    using angle resolved photoemission spectroscopy, we study the effects of many-body
    interactions and displacement field on the band structure of bilayer graphene
    field-effect devices at intermediate (3º) twist angle. We observe a layer and
    doping-dependent renormalization of bands at the K points that is qualitatively
    consistent with moir ́e models of the Hartree-Fock interaction. We provide evidence
    for correlation-enhanced inversion symmetry breaking, manifested by gaps at the
    Dirac points which are tunable with doping. These results suggest that electronic
    interactions play a significant role in the physics of bilayer graphene even at
    intermediate twist angles, and present a new pathway towards engineering band
    structure and symmetry-breaking phases in moiré heterostructures.
  description_type: abstract
  lang: und

## Creator

- name: Nicholas Dale
  role: author
- name: M. Iqbal Bakti Utama
  role: author
- name: Dongkyu Lee
  role: author
- name: Nicolas Leconte
  role: author
- name: Sihan Zhao
  role: author
- name: Kyunghoon Lee
  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: Chris Jozwiak
  role: author
- name: Aaron Bostwick
  role: author
- name: Eli Rotenberg
  role: author
- name: Roland J. Koch
  role: author
- name: Jeil Jung
  role: author
- name: Feng Wang
  role: author
- name: Alessandra Lanzara
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Twisted bilayer graphene
  schema: not_defined
- subject: symmetry breaking phases
  schema: not_defined
- subject: ARPES
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nano Letters
  issn: '15306984'
  volume: '23'
  issue: '15'
  start_page: 6799
  end_page: 6806

## Conference



## Related item



## Funding

- identifier: GBMF4859
  funder_name: Gordon and Betty Moore Foundation
- identifier: SSTF-BA1802- 06
  funder_name: Samsung Science and Technology Foundation
- identifier: 2020R1A2C3009142
  funder_name: National Research Foundation of Korea
- identifier: 2020R1A5A1016518
  funder_name: National Research Foundation of Korea
- identifier: KSC-2022-CRE-0514
  funder_name: Korea Institute of Science and Technology Information
- identifier: 19H05790
  funder_name: Japan Society for the Promotion of Science
- identifier: 20H00354
  funder_name: Japan Society for the Promotion of Science
- identifier: 21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: DE-AC02- 05CH11231
  funder_name: U.S. Department of Energy
- identifier: DEAC02- 05CH11231
  funder_name: U.S. Department of Energy
- funder_name: Ministry of Land, Infrastructure and Transport
- funder_name: Urban Big data and AI Institute
- funder_name: Innovative Talent Education Program for Smart Cities

## Instrument



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## Measurement method



## Specimen



## Chemical composition



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## Specific property for specimen



## Process for specimen treatment



## Computational method



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## Fileset

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  filename: acs.nanolett.3c00253.pdf
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  size: 4183763
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## Thumbnail

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filename: acs.nanolett.3c00253.pdf