# Independently Tunable Flat Bands and Correlations in a Graphene Double Moiré System

https://mdr.nims.go.jp/datasets/590bd80f-92c1-4f90-923f-c5356d741b01

## File

- [2025A00435G_Graphene Double Moiré.pdf](https://mdr.nims.go.jp/filesets/81113ccc-76de-4f15-ab63-fc151eec5d67/download) ([Detail](https://mdr.nims.go.jp/filesets/81113ccc-76de-4f15-ab63-fc151eec5d67.md))

## Id

590bd80f-92c1-4f90-923f-c5356d741b01

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-07-02T01:38:07.976404Z

## Updated at

2026-07-06T01:43:43.641457Z

## Published at

2026-07-06T03:30:03.828331Z

## Doi



## First published url

https://doi.org/10.1103/PhysRevLett.134.096204

## Date published

2025-03-07

## Recorded date published

2025-3

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Independently Tunable Flat Bands and Correlations in a Graphene Double Moiré
    System
  title_type: original
  lang: en

## Description

- description: We report on a double moiré system consisting of four graphene layers,
    where the top and bottom pairs form small-twist-angle bilayer graphene, and the
    middle interface has a large rotational mismatch. This system shows clear signatures
    of two sets of spatially separated flat bands associated with the top and bottom
    twisted bilayer graphene subsystems, each independently tunable. Thermodynamic
    analysis reveals weak correlations between bilayers that allow the chemical potential
    to be measured as a function of carrier density for each constituent TBG. We find
    that correlated insulating states at integer number of electrons per moiré unit
    cell are most robust near magic angle, whereas gapped states at neutrality are
    more robust at larger twist angles.
  description_type: abstract
  lang: en

## Creator

- name: Yimeng Wang
  role: author
- name: Jihang Zhu
  role: author
- name: G. William Burg
  role: author
- name: Anand Swain
  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: Yuebing Zheng
  role: author
- name: Allan H. MacDonald
  role: author
- name: Emanuel Tutuc
  role: author

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Moiré system
  schema: not_defined
- subject: Twisted bilayer graphene (TBG)
  schema: not_defined
- subject: Flat bands
  schema: not_defined

## Rights

- description: "© 2025 American Physical Society"
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review Letters
  issn: '10797114'
  volume: '134'
  issue: '9'
  article_number: '096204'

## Conference



## Related item



## Funding

- identifier: MRSEC DMR-2308817
  funder_name: National Science Foundation
- identifier: EECS-2122476
  funder_name: National Science Foundation
- identifier: '2140985'
  funder_name: National Science Foundation
- identifier: W911NF-22-1-2
  funder_name: Army Research Office
- identifier: F-2169-20230405
  funder_name: Welch Foundation
- identifier: DE-SC0019481
  funder_name: U.S. Department of Energy

## 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



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## Fileset

- id: 81113ccc-76de-4f15-ab63-fc151eec5d67
  filename: 2025A00435G_Graphene Double Moiré.pdf
  content_type: application/pdf
  size: 2506308
  md5: 29689b01a8167631f34a6c0cbdead4ca

## Thumbnail

fileset_id: 81113ccc-76de-4f15-ab63-fc151eec5d67
filename: 2025A00435G_Graphene Double Moiré.pdf