# Correlation-driven nonequilibrium exciton site transition in a WSe2/WS2 moiré supercell

https://mdr.nims.go.jp/datasets/31189a1a-a901-43db-b1f4-943e195dccc7

## File

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## Id

31189a1a-a901-43db-b1f4-943e195dccc7

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-07T00:32:43.357226Z

## Updated at

2025-02-07T07:30:46.166359Z

## Published at

2025-02-07T07:30:46.269867Z

## Doi



## First published url

https://doi.org/10.1038/s41467-024-47768-6

## Date published

2024-04-17

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Correlation-driven nonequilibrium exciton site transition in a WSe2/WS2 moiré
    supercell
  title_type: original
  lang: en

## Description

- description: Moiré superlattices of transition metal dichalcogenides offer a unique
    platform to explore correlated exciton physics with optical spectroscopy. Whereas
    the spatially modulated potentials evoke that the exciton resonances are distinct
    depending on a site in a moiré supercell, it is presumed that the dynamic interactions
    with electrons were to be site-dependent. Thus, the transient emergence of nonequilibrium
    correlations are open questions, but existing studies are limited to steady-state
    optical measurements. Here we report experimental fingerprints of site-dependent
    exciton correlations under continuous-wave as well as ultrashort optical excitations.
    In near-zero angle-aligned WSe2/WS2 heterobilayers, we observe intriguing polarization
    switching and strongly enhanced Pauli blocking near the Mott insulating state,
    dictating the dominant correlation-driven effects. When the twist angle is near
    60°, no such correlations are observed, suggesting the strong dependence of atomic
    registry in moiré supercell configuration. Our studies open the door to largely
    unexplored nonequilibrium correlations of excitons in moiré superlattices.
  description_type: abstract
  lang: und

## Creator

- name: Jinjae Kim
  role: author
- name: Jiwon Park
  role: author
- name: Hyojin Choi
  role: author
- name: Taeho Kim
  role: author
- name: Soonyoung Cha
  role: author
- name: Yewon Lee
  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: Jonghwan Kim
  role: author
- name: Moon-Ho Jo
  role: author
- name: Hyunyong Choi
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Moiré superlattices
  schema: not_defined
- subject: exciton correlations
  schema: not_defined
- subject: WSe2/WS2
  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: '15'
  issue: '1'
  article_number: '3312'

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## Fileset

- id: f4bcd004-dd38-419f-8d38-8a7c77a83494
  filename: s41467-024-47768-6.pdf
  content_type: application/pdf
  size: 4821431
  md5: 226adad08fc8bfa2971de6966cf673c9

## Thumbnail

fileset_id: f4bcd004-dd38-419f-8d38-8a7c77a83494
filename: s41467-024-47768-6.pdf