# Tunable exciton valley-pseudospin orders in moiré superlattices

https://mdr.nims.go.jp/datasets/51285ea0-3f9d-4394-9c49-85a3e62b4e9d

## File

- [s41467-024-48725-z.pdf](https://mdr.nims.go.jp/filesets/13f0ec35-d074-41bd-b181-25935d1df04d/download) ([Detail](https://mdr.nims.go.jp/filesets/13f0ec35-d074-41bd-b181-25935d1df04d.md))

## Id

51285ea0-3f9d-4394-9c49-85a3e62b4e9d

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-07T02:39:33.809662Z

## Updated at

2025-02-07T07:30:26.553721Z

## Published at

2025-02-07T07:30:26.762229Z

## Doi



## First published url

https://doi.org/10.1038/s41467-024-48725-z

## Date published

2024-05-18

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Tunable exciton valley-pseudospin orders in moiré superlattices
  title_type: original
  lang: en

## Description

- description: Spin and charge are the two most important degrees of freedom (DOF)
    of electrons. Their interplay lies at the heart of numerous strongly correlated
    phenomena including Hubbard model physics and high temperature superconductivity1,2.
    Such interplay for bosons, on the other hand, is largely unexplored in condensed
    matter systems. Here we demonstrate a unique realization of spin-½ Bose Hubbard
    model through excitons in a semiconducting moiré superlattice. Our observation
    suggests a transient FM-xy order of exciton “spin” – here valley pseudospin --
    around vex = 1, which transitions into an FM-z order both with increasing exciton
    filling and a small magnetic field of ~10 mT. The phase diagram is distinctively
    different from the fermion case and is qualitatively captured by a simple phenomenological
    model, highlighting the unique consequence of Bose-Einstein statistics. Our study
    paves the way for engineering exotic phases of matter from spinor bosons, as well
    as for unconventional devices in optics and quantum information science.
  description_type: abstract
  lang: und

## Creator

- name: Richen Xiong
  role: author
- name: Samuel L. Brantly
  role: author
- name: Kaixiang Su
  role: author
- name: Jacob H. Nie
  role: author
- name: Zihan Zhang
  role: author
- name: Rounak Banerjee
  role: author
- name: Hayley Ruddick
  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: Seth Ariel Tongay
  role: author
- name: Cenke Xu
  role: author
- name: Chenhao Jin
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Excitons
  schema: not_defined
- subject: optoelectronic devices
  schema: not_defined
- subject: WSe2/WS2 moiré superlattices
  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: '4254'

## Conference



## Related item



## Funding

- identifier: DMR-2337606
  funder_name: National Science Foundation

## 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: 13f0ec35-d074-41bd-b181-25935d1df04d
  filename: s41467-024-48725-z.pdf
  content_type: application/pdf
  size: 5203507
  md5: a89e34f8a693b4d27486f5a589008f63

## Thumbnail

fileset_id: 13f0ec35-d074-41bd-b181-25935d1df04d
filename: s41467-024-48725-z.pdf