# Highly tunable ground and excited state excitonic dipoles in multilayer 2H-MoSe2

https://mdr.nims.go.jp/datasets/d219e98e-219e-4e7c-9c62-e3cf79563e17

## Files

- [s41467-024-48476-x.pdf](https://mdr.nims.go.jp/filesets/201a10ee-8841-45bd-86e8-c3a08b10413b/download) ([Detail](https://mdr.nims.go.jp/filesets/201a10ee-8841-45bd-86e8-c3a08b10413b.md))

## Id

d219e98e-219e-4e7c-9c62-e3cf79563e17

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-07T04:16:24.098274Z

## Updated at

2025-02-07T07:30:36.618554Z

## Published at

2025-02-07T07:30:36.705215Z

## Doi



## First published url

https://doi.org/10.1038/s41467-024-48476-x

## Date published

2024-05-23

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Highly tunable ground and excited state excitonic dipoles in multilayer 2H-MoSe2
  title_type: original
  lang: en

## Description

- description: The fundamental properties of an exciton are determined by the spin,
    valley, energy, and spatial wavefunctions of the Coulomb bound electron and hole.
    In van der Waals materials, these attributes can be widely engineered through
    layer stacking configuration to create highly tunable interlayer excitons with
    static out-of-plane electric dipoles, at the expense of the strength of the oscillating
    in-plane dipole responsible for light-matter coupling. Here we show that interlayer
    excitons in bi- and tri-layer 2H-MoSe2 crystals exhibit electric-field-driven
    coupling with the ground (1s) and excited states (2s) of the intralayer A excitons.
    We demonstrate that the hybrid states of these distinct exciton species provide
    strong oscillator strength, large permanent dipoles (up to 0.73 ± 0.01 enm), high
    energy tunability (up to ~ 200 meV), and full control of the spin and valley characteristics
    such that the exciton g-factor can be manipulated over a large range (from -4
    to +14). Further, we observe the bi- and tri-layer excited state (2s) interlayer
    excitons and their coupling with the intralayer excitons states (1s and 2s). Our
    results, in good agreement with a coupled oscillator model with spin (layer)-selectivity
    and beyond standard density functional theory calculations, promote multilayer
    2H-MoSe2 as a highly tunable platform to explore dipolar physics with strong light-matter
    interactions.
  description_type: abstract
  lang: und

## Creator

- name: Shun Feng
  role: author
- name: Aidan J. Campbell
  role: author
- name: Mauro Brotons-Gisbert
  role: author
- name: Daniel Andres-Penares
  role: author
- name: Hyeonjun Baek
  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: Bernhard Urbaszek
  role: author
- name: Iann C. Gerber
  role: author
- name: Brian D. Gerardot
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Exciton properties
  schema: not_defined
- subject: interlayer excitons
  schema: not_defined
- subject: electric-field-driven
  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: '4377'

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## Specimen



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## Fileset

- id: 201a10ee-8841-45bd-86e8-c3a08b10413b
  filename: s41467-024-48476-x.pdf
  content_type: application/pdf
  size: 1668622
  md5: 44cc1fa8f96ed24b6f9d9d3f77db9acd

## Thumbnail

fileset_id: 201a10ee-8841-45bd-86e8-c3a08b10413b
filename: s41467-024-48476-x.pdf