# Exciton-polarons in the presence of strongly correlated electronic states in a MoSe2/WSe2 moiré superlattice

https://mdr.nims.go.jp/datasets/a597ef18-b5de-4bb9-a1e7-d0937aa99a39

## File

- [s41699-022-00358-w.pdf](https://mdr.nims.go.jp/filesets/c2d69aac-99ce-4741-b4b0-190410d59d05/download) ([Detail](https://mdr.nims.go.jp/filesets/c2d69aac-99ce-4741-b4b0-190410d59d05.md))

## Id

a597ef18-b5de-4bb9-a1e7-d0937aa99a39

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-27T05:13:12.723568Z

## Updated at

2025-02-27T23:31:07.769597Z

## Published at

2025-02-27T23:31:07.838276Z

## Doi



## First published url

https://doi.org/10.1038/s41699-022-00358-w

## Date published

2022-11-04

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Exciton-polarons in the presence of strongly correlated electronic states
    in a MoSe2/WSe2 moiré superlattice
  title_type: original
  lang: en

## Description

- description: 'Two-dimensional moiré materials provide a highly tunable platform
    to investigate strongly correlated electronic states. Such emergent many-body
    phenomena can be optically probed in moiré systems created by stacking two layers
    of transition metal dichalcogenide semiconductors: opti- cally injected excitons
    can interact with itinerant carriers occupying narrow moiré bands to form exciton-polarons
    sensitive to strong correlations. Here, we investigate the many-body interactions
    between excitons and a Fermi sea that is spatially pinned by the moiré superlattice
    of a molybdenum diselenide (MoSe2) / tungsten diselenide (WSe2) twisted heterobilayer.
    At a multitude of fractional fillings of the moiré lattice, we observe ordering
    of both electrons and holes into stable correlated electronic states. Magneto-optical
    measurements reveal extraordinary Zeeman splittings of the exciton-polarons due
    to exchange interactions between holes in the correlated phases, with a maximum
    close to the correlated state at one hole per site. The temperature dependence
    of the Zeeman splitting reveals anti-ferromagnetic ordering of the correlated
    holes across a wide range of fractional fillings. Our results illustrate the nature
    of excitons interacting with a spatially pinned Fermi sea and provide robust evidence
    for strongly correlated electronic states in MoSe2/WSe2 het- erobilayers, unveiling
    the rich potential of this platform for investigations of Fermi-Hubbard and Bose-Hubbard
    physics.'
  description_type: abstract
  lang: und

## Creator

- name: Aidan J. Campbell
  role: author
- name: Mauro Brotons-Gisbert
  role: author
- name: Hyeonjun Baek
  role: author
- name: Valerio Vitale
  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: Johannes Lischner
  role: author
- name: Brian D. Gerardot
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Moiré materials
  schema: not_defined
- subject: exciton-polarons
  schema: not_defined
- subject: correlated electronic states
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: npj 2D Materials and Applications
  issn: '23977132'
  volume: '6'
  issue: '1'
  article_number: '79'

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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: c2d69aac-99ce-4741-b4b0-190410d59d05
  filename: s41699-022-00358-w.pdf
  content_type: application/pdf
  size: 1791810
  md5: 17e9f58a38b599593b15a258fb13f46f

## Thumbnail

fileset_id: c2d69aac-99ce-4741-b4b0-190410d59d05
filename: s41699-022-00358-w.pdf