# Excitonic signatures of ferroelectric order in parallel-stacked MoS2

https://mdr.nims.go.jp/datasets/c53fce43-3d60-42d7-93ae-78f2e9018d99

## File

- [s41467-024-52011-3.pdf](https://mdr.nims.go.jp/filesets/05a77e0a-c483-4a07-bf90-2cda04cf07b6/download) ([Detail](https://mdr.nims.go.jp/filesets/05a77e0a-c483-4a07-bf90-2cda04cf07b6.md))

## Id

c53fce43-3d60-42d7-93ae-78f2e9018d99

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-26T08:01:27.936224Z

## Updated at

2025-02-27T07:30:36.704638Z

## Published at

2025-02-27T07:30:36.797623Z

## Doi



## First published url

https://doi.org/10.1038/s41467-024-52011-3

## Date published

2024-08-31

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Excitonic signatures of ferroelectric order in parallel-stacked MoS2
  title_type: original
  lang: en

## Description

- description: "Interfacial ferroelectricity is a phenomenon arising in a plethora
    of parallel-stacked layered materials,in which out-of-plane ferroelectric order
    is switched by in-plane sliding of adjacent layers. Unlike conventional ferroelectrics,
    interfacial ferroelectricity is stable against doping, potentially enabling next-generation
    devices with storage and computational capabilities.12 However, the field has
    been limited to indirect sensingor visualizing the ferroelectricity in basic bilayer
    units employing surface-sensitive probes. In the case of transition metal dichalcogenides,
    this leaves a void of in-depth knowledge about the influence of ferroelectric
    order on their intrinsic valley and excitonic properties. Here, we report direct
    far-field probing of ferroelectricity in few-layer 3R-MoS2 using reflectance contrast
    spectroscopy. Contrary to a simple electrostatic perception, the intralayer excitons
    with strictly in-plane dipole orientation are sensitive to out-of-plane ferroelectric
    ordering. On the other hand, despite possessing an out-of-plane electric dipole
    component, layer-hybridized momentum-indirect excitons remain decoupled from such
    ordering. Ab initio calculations elucidate the microscopic origin of the correspondence
    between ferroelectric order and optical response. Using a field-effect device,
    we demonstrate room temperature control and optical readout of multi-state polarization
    and its hysteretic switching. Time-resolved Kerr ellipticity measured in different
    ferroelectric domains reveals a direct correspondence between spin-valley dynamics
    and ferroelectric order.\r\nSubject Terms\tPhysical sciences/Nanoscience and technology/Nanoscale
    materials/Two-dimensional materials\r\n"
  description_type: abstract
  lang: und

## Creator

- name: Swarup Deb
  role: author
- name: Johannes Krause
  role: author
- name: Paulo E. Faria Junior
  role: author
- name: Michael Andreas Kempf
  role: author
- name: Rico Schwartz
  role: author
- 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: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Jaroslav Fabian
  role: author
- name: Tobias Korn
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Interfacial ferroelectricity
  schema: not_defined
- subject: valley properties
  schema: not_defined
- subject: reflectance contrast
  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: '7595'

## Conference



## Related item



## Funding

- funder_name: JSPS KAKENHI
- identifier: '314695032'
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: '441234705'
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: '443361515'
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: '467549803'
  funder_name: Deutsche Forschungsgemeinschaft
- funder_name: Alexander von Humboldt-Stiftung
- identifier: '441219355'
  funder_name: Deutsche Forschungsgemeinschaft

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## Fileset

- id: 05a77e0a-c483-4a07-bf90-2cda04cf07b6
  filename: s41467-024-52011-3.pdf
  content_type: application/pdf
  size: 1987916
  md5: a64f747ac60340fa72c962c5bb7fa4bb

## Thumbnail

fileset_id: 05a77e0a-c483-4a07-bf90-2cda04cf07b6
filename: s41467-024-52011-3.pdf