# Magnetic-field induced dimensionality switch of charge density waves in strained 2H-NbSe2 surface

https://mdr.nims.go.jp/datasets/b09cff43-93af-460c-aa5b-082e4da36d81

## File

- [Ichikawa_NbSe2.pdf](https://mdr.nims.go.jp/filesets/a93360fb-eeef-4f30-a04f-cc4c98f2304d/download) ([Detail](https://mdr.nims.go.jp/filesets/a93360fb-eeef-4f30-a04f-cc4c98f2304d.md))

## Id

b09cff43-93af-460c-aa5b-082e4da36d81

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-08-14T12:22:57.573143Z

## Updated at

2025-08-18T07:30:54.757608Z

## Published at

2025-08-18T07:21:29.343305Z

## Doi



## First published url

https://doi.org/10.1038/s41699-025-00584-y

## Date published

2025-07-09

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Magnetic-field induced dimensionality switch of charge density waves in strained
    2H-NbSe2 surface
  title_type: original
  lang: en

## Description

- description: "Thinning van der Waals crystals to monolayers is crucial for nanoelectronic
    devices but often\r\nintroduces strain, altering their electronic properties.
    This study explores how strain affects the charge\r\ndensity wave (CDW) in 2H
    niobium diselenide (2H-NbSe2), focusing on a transition from a 2 × 2 to a 1Q\r\nCDW
    phase under weak magnetic fields (~30 mT), revealing high magnetic sensitivity.
    The strained\r\n2H-NbSe2 surface, prepared via vacuum and tape exfoliation, exhibits
    a 2 × 2 CDW phase observed\r\nusing low-temperature (4.3 K) scanning tunneling
    microscopy and spectroscopy (STM/STS)\r\ncombined with scanning electron microscopy
    (SEM) and cross-sectional transmission electron\r\nmicroscopy (TEM) under ultrahigh
    vacuum (UHV) conditions. STS maps show the 2 × 2 CDW around\r\n±100 meV from the
    Fermi level. Upon applying a magnetic field, a localized 1Q stripe CDW pattern\r\nemerges
    near ±40 meV. These results highlight the influence of strain and magnetic fields
    on CDW\r\nbehavior in 2D materials."
  description_type: abstract
  lang: und

## Creator

- name: Ryo Ichikawa
  role: author
- name: Yukiko K. Takahashi
  role: author
  orcid: https://orcid.org/0000-0001-9197-7236
- name: Eiichi Inami
  role: author
- name: Toyo Kazu Yamada
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: 2H-NbSe2
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: npj 2D Materials and Applications
  issn: '23977132'
  volume: '9'
  issue: '1'
  article_number: '59'

## Conference



## Related item



## Funding

- identifier: 23H02033
  funder_name: Japan Society for the Promotion of Science
- funder_name: Murata Science Foundation
- funder_name: Shorai Foundation for Science and Technology
- funder_name: TEPCO Memorial Foundation
- funder_name: Casio Science Promotion Foundation
- funder_name: Toshiaki Ogasawara Memorial 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: a93360fb-eeef-4f30-a04f-cc4c98f2304d
  filename: Ichikawa_NbSe2.pdf
  content_type: application/pdf
  size: 5571537
  md5: fc8a18e9acf8eca31b90d274a41c9d8c

## Thumbnail

fileset_id: a93360fb-eeef-4f30-a04f-cc4c98f2304d
filename: Ichikawa_NbSe2.pdf