# Imaging interlayer exciton superfluidity in a 2D semiconductor heterostructure

https://mdr.nims.go.jp/datasets/3b1aaf00-4fa8-4f55-b821-a044084b91ca

## File

- [sciadv.adr1772.pdf](https://mdr.nims.go.jp/filesets/4a1cf6dd-5e3b-4d5e-97fb-b601bd9ccd51/download) ([Detail](https://mdr.nims.go.jp/filesets/4a1cf6dd-5e3b-4d5e-97fb-b601bd9ccd51.md))

## Id

3b1aaf00-4fa8-4f55-b821-a044084b91ca

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-04T05:28:51.909274Z

## Updated at

2025-02-05T03:30:13.890024Z

## Published at

2025-02-05T03:30:14.139098Z

## Doi



## First published url

https://doi.org/10.1126/sciadv.adr1772

## Date published

2025-01-03

## Recorded date published

2025-1-3

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Imaging interlayer exciton superfluidity in a 2D semiconductor heterostructure
  title_type: original
  lang: en

## Description

- description: Excitons, which are Coulomb bound electron-hole pairs, are composite
    bosons and thus at low temperature can form a superfluid state with a single well-defined
    amplitude and phase. We directly image this macroscopic exciton superfluid state
    in an hBN-separated MoSe2-WSe2 heterostructure. At high density, we identify quasi-long-range
    order over the entire active area of our sample, through spatially resolved coherence
    measurements. By varying the exciton density and sample temperature, we map out
    the phase diagram of the superfluid. We observe the superfluid phase persisting
    to a temperature of 15 K, which is in excellent agreement with theoretical predictions.
    This works paves the way to realizing on chip superfluid structures capable of
    studying fundamental physical behaviors and quantum devices that use superfluidity.
    A two-dimensional gas of excitons transitions into a coherent superfluid.
  description_type: abstract
  lang: und

## Creator

- name: Jacob Cutshall
  role: author
  orcid: https://orcid.org/0000-0002-8753-8203
- name: Fateme Mahdikhany
  role: author
  orcid: https://orcid.org/0000-0002-5163-7293
- name: Anna Roche
  role: author
  orcid: https://orcid.org/0000-0002-8481-4233
- name: Daniel N. Shanks
  role: author
  orcid: https://orcid.org/0000-0002-6329-0338
- name: Michael R. Koehler
  role: author
  orcid: https://orcid.org/0000-0001-6936-8928
- name: David G. Mandrus
  role: author
  orcid: https://orcid.org/0000-0003-3616-7104
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
- name: Qizhong Zhu
  role: author
  orcid: https://orcid.org/0000-0002-9798-9075
- name: Brian J. LeRoy
  role: author
  orcid: https://orcid.org/0000-0003-1610-5424
- name: John R. Schaibley
  role: author
  orcid: https://orcid.org/0000-0002-8024-9193

## Contact agent



## Publisher

organization: American Association for the Advancement of Science (AAAS)

## Managing organization



## Keyword

- subject: Excitons
  schema: not_defined
- subject: superfluid state
  schema: not_defined
- subject: MoSe2-WSe2 heterostructure
  schema: not_defined

## Rights

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

## Other identifier(s)



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## Embargo



## Journal

- title: Science Advances
  issn: '23752548'
  volume: '11'
  issue: '1'

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## Specimen



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## Fileset

- id: 4a1cf6dd-5e3b-4d5e-97fb-b601bd9ccd51
  filename: sciadv.adr1772.pdf
  content_type: application/pdf
  size: 4447587
  md5: be904b3f0367538a1c627bc612e7c2e0

## Thumbnail

fileset_id: 4a1cf6dd-5e3b-4d5e-97fb-b601bd9ccd51
filename: sciadv.adr1772.pdf