# Quadrupolar excitons and hybridized interlayer Mott insulator in a trilayer moiré superlattice

https://mdr.nims.go.jp/datasets/ef6f285c-7bd1-4e22-a120-0292adfd4b14

## Files

- [s41467-023-40288-9.pdf](https://mdr.nims.go.jp/filesets/cfc83bdc-bb74-4c92-a206-cbc802e6304b/download) ([Detail](https://mdr.nims.go.jp/filesets/cfc83bdc-bb74-4c92-a206-cbc802e6304b.md))

## Id

ef6f285c-7bd1-4e22-a120-0292adfd4b14

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T08:02:02.768847Z

## Updated at

2025-02-15T03:31:11.353844Z

## Published at

2025-02-15T03:31:11.472448Z

## Doi



## First published url

https://doi.org/10.1038/s41467-023-40288-9

## Date published

2023-08-01

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Quadrupolar excitons and hybridized interlayer Mott insulator in a trilayer
    moiré superlattice
  title_type: original
  lang: en

## Description

- description: Transitional metal dichalcogenide (TMDC) moiré superlattices, owing
    to the moiré flatbands and strong correlation, can host periodic electron crystals
    and fascinating correlated physics. The TMDC heterojunctions in the type-II alignment
    also enable long-lived interlayer excitons, which is promising for realizing bosonic
    crystal in the setting of moiré exciton flatbands. The strong repulsion between
    interlayer excitons challenges such a goal, while the repulsion can be significantly
    reduced in quadrupolar excitons. Here we demonstrate WSe2-WS2-WSe2 trilayer moiré
    superlattice as a platform to simultaneously host quadruple excitons and an interlayer
    Mott insulator state, both stemming from the hybridization of WSe2 valance bands.
    The quadrupolar excitons exhibit a quadratic dependence on electric field, distinctively
    different from the linear Stark shift of the dipolar excitons from moiré heterobilayers.
    The system exhibits a hybridized interlayer Mott insulator state when the two
    WSe2 layers share one hole laterally confined in one moiré unit cell, while the
    hole occupation probability in each layer can be continuously tuned via an out-of-plane
    electric field, reaching 100% in the top or bottom WSe2 under a large electric
    field, accompanying the transition from quadrupolar excitons to dipolar excitons.
    Our work demonstrates a trilayer moiré system as a new exciting playground for
    realizing novel correlated states and engineering quantum phase transitions
  description_type: abstract
  lang: und

## Creator

- name: Zhen Lian
  role: author
- name: Dongxue Chen
  role: author
- name: Lei Ma
  role: author
- name: Yuze Meng
  role: author
- name: Ying Su
  role: author
- name: Li Yan
  role: author
- name: Xiong Huang
  role: author
- name: Qiran Wu
  role: author
- name: Xinyue Chen
  role: author
- name: Mark Blei
  role: author
- 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: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Sefaattin Tongay
  role: author
- name: Chuanwei Zhang
  role: author
- name: Yong-Tao Cui
  role: author
- name: Su-Fei Shi
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Moiré superlattices
  schema: not_defined
- subject: quadrupolar exciton
  schema: not_defined
- subject: WSe2-WS2
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '14'
  issue: '1'
  article_number: '4604'

## Conference



## Related item



## Funding

- identifier: DMR-1945420
  funder_name: National Science Foundation
- identifier: DMR-2104902
  funder_name: National Science Foundation
- identifier: ECCS- 2139692
  funder_name: National Science Foundation

## Instrument



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## Specimen



## Chemical composition



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## Fileset

- id: cfc83bdc-bb74-4c92-a206-cbc802e6304b
  filename: s41467-023-40288-9.pdf
  content_type: application/pdf
  size: 2847612
  md5: 80a181e71197c5c39036eb7a59a7187b

## Thumbnail

fileset_id: cfc83bdc-bb74-4c92-a206-cbc802e6304b
filename: s41467-023-40288-9.pdf