# Anomalous thickness dependence of the vortex pearl length in few-layer NbSe2

https://mdr.nims.go.jp/datasets/0d3c041c-5cc2-490a-ab2f-13c17e2b2987

## File

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## Id

0d3c041c-5cc2-490a-ab2f-13c17e2b2987

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-14T06:35:32.553194Z

## Updated at

2026-02-16T07:30:41.459999Z

## Published at

2026-02-16T04:57:28.490557Z

## Doi



## First published url

https://doi.org/10.1038/s41467-025-57817-3

## Date published

2025-03-31

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Anomalous thickness dependence of the vortex pearl length in few-layer NbSe2
  title_type: original
  lang: en

## Description

- description: "A common thread in condensed matter physics is the coexistence of
    multiple types of orders. Understanding the competition among these orders is
    essential for developing comprehensive physical models. Unconventional superconductors
    are prototypical systems where the physics is determined by competing orders.
    The nature of superconducting orders may be unveiled by analyzing a local perturbation
    such as vortices. In particular, for thin films, the vortex magnetic profile is
    characterized by the Pearl length Λ , which is inversely proportional to the 2D
    superfluid density; hence, normally, also inversely proportional to the film thickness,
    \U0001D451. Here we employ the scanning SQUID-on- tip microscopy technique to
    directly measure the Pearl length in NbSe2 films with thickness ranging from 3
    to 53 layers. For films thicker than ten layers, we indeed find the expected dependence
    Λ ∝ 1⁄\U0001D451. However, six- layer films show a sharp increase of Λ deviating
    by a factor three from the expected value. This value remains fixed for films
    ranging from three to six layers. This unexpected behavior suggests the competition
    between orders where one order parameter resides only on the first and last layers
    of the film while the other is spread in all layers."
  description_type: abstract
  lang: und

## Creator

- name: Nofar Fridman
  role: author
- name: Tomer Daniel Feld
  role: author
- name: Avia Noah
  role: author
- name: Ayelet Zalic
  role: author
- name: Maya Markman
  role: author
- name: T. R. Devidas
  role: author
- name: Yishay Zur
  role: author
- name: Einav Grynszpan
  role: author
- name: Alon Gutfreund
  role: author
- name: Itai Keren
  role: author
- name: Atzmon Vakahi
  role: author
- name: Sergei Remennik
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Martin Emile Huber
  role: author
- name: Igor Aleiner
  role: author
- name: Hadar Steinberg
  role: author
- name: Oded Agam
  role: author
- name: Yonathan Anahory
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: NbSe2
  schema: not_defined
- subject: vortex pearl length
  schema: not_defined
- subject: scanning SQUID microscopy
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-03-31

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '16'
  article_number: '2696'

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## Fileset

- id: 38f57a31-33fa-4fe9-a471-a423994beb27
  filename: s41467-025-57817-3.pdf
  content_type: application/pdf
  size: 1590589
  md5: 6fd91c40547e82382ccdb6518f0b921d

## Thumbnail

fileset_id: 38f57a31-33fa-4fe9-a471-a423994beb27
filename: s41467-025-57817-3.pdf