# Exciton Superposition across Moiré States in a Semiconducting Moiré Superlattice

https://mdr.nims.go.jp/datasets/91c07e8b-d3a0-4dc9-bc81-8d50904bc20c

## File

- [s41467-023-40783-z.pdf](https://mdr.nims.go.jp/filesets/de447bb6-a1f8-42b6-8050-c7aecf570b52/download) ([Detail](https://mdr.nims.go.jp/filesets/de447bb6-a1f8-42b6-8050-c7aecf570b52.md))

## Id

91c07e8b-d3a0-4dc9-bc81-8d50904bc20c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-07T08:30:25.325413Z

## Updated at

2025-02-11T03:30:41.160476Z

## Published at

2025-02-11T03:30:41.235818Z

## Doi



## First published url

https://doi.org/10.1038/s41467-023-40783-z

## Date published

2023-08-19

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Exciton Superposition across Moiré States in a Semiconducting Moiré Superlattice
  title_type: original
  lang: en

## Description

- description: 'Moiré superlattices of semiconducting transitional metal dichalcogenides
    (TMDCs) enable unprecedented spatial control of electron wavefunction in an artificial
    lattice with periodicities more than ten times that of atomic crystals, leading
    to emerging quantum states with fascinating electronic and optical properties.
    The breaking of translational symmetry further introduces a new degree of freedom
    inside each moiré unit cell: high symmetry points of energy minima called moiré
    sites, behaving as spatially separated quantum wells. The superposition of a quasiparticle’s
    wavefunction between different moiré sites will enable a new platform for quantum
    information processing but is hindered by the suppressed electron tunneling between
    moiré sites. Here we demonstrate the superposition between two moiré sites by
    constructing an angle-aligned trilayer WSe2/monolayer WS2 moiré heterojunction.
    The two moiré sites with energy minimum allow the formation of two different interlayer
    excitons, with the hole residing in either moiré site of the first WSe2 layer
    interfacing the WS2 layer and the electron in the third WSe2 layer. An external
    electric field can drive the hybridization of either of the interlayer excitons
    with the intralayer excitons in the third WSe2 layer, realizing the continuous
    tuning of interlayer exciton hopping between two moiré sites. Therefore, a superposition
    of the two interlayer excitons localized at different moiré sites can be realized,
    which can be resolved in the electric-field-dependent optical reflectance spectra,
    distinctly different from that of the natural trilayer WSe2 in which the moiré
    modulation is absent. Our study illustrates a strategy of harnessing the new moiré
    site degree of freedom for quantum information science and sets up the stage for
    exciting opportunities of “moirétronics”. '
  description_type: abstract
  lang: und

## Creator

- name: Zhen Lian
  role: author
- name: Dongxue Chen
  role: author
- name: Yuze Meng
  role: author
- name: Xiaotong Chen
  role: author
- name: Ying Su
  role: author
- name: Rounak Banerjee
  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: quantum states
  schema: not_defined
- subject: Moiré superlattices
  schema: not_defined
- subject: interlayer excitons
  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: '14'
  issue: '1'
  article_number: '5042'

## 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



## 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



## Software



## Custom property



## Fileset

- id: de447bb6-a1f8-42b6-8050-c7aecf570b52
  filename: s41467-023-40783-z.pdf
  content_type: application/pdf
  size: 2235062
  md5: 7f221fb547d5b61e2f5825910244a20b

## Thumbnail

fileset_id: de447bb6-a1f8-42b6-8050-c7aecf570b52
filename: s41467-023-40783-z.pdf