# Spin-Valve Effect in Junctions with a Single Ferromagnet

https://mdr.nims.go.jp/datasets/14847a89-fcee-4254-90bf-bef808bbbd36

## File

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- [2025A00432G_SI.docx](https://mdr.nims.go.jp/filesets/c423112b-162b-44fe-8733-a96484c16723/download) ([Detail](https://mdr.nims.go.jp/filesets/c423112b-162b-44fe-8733-a96484c16723.md))

## Id

14847a89-fcee-4254-90bf-bef808bbbd36

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-07-02T02:14:51.963651Z

## Updated at

2026-07-06T04:48:03.816081Z

## Published at

2026-07-06T07:27:58.106616Z

## Doi



## First published url

https://doi.org/10.1021/acs.nanolett.4c06301

## Date published

2025-03-05

## Recorded date published

2025-3-5

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Spin-Valve Effect in Junctions with a Single Ferromagnet
  title_type: original
  lang: en

## Description

- description: Spin valves are essential components in spintronic memory devices whose
    conductance is modulated by controlling spin-polarized electron tunnelling through
    the alignment of the magnetization in ferromagnetic elements. Whereas conventional
    spin valves unavoidably require at least two ferromagnetic elements, here we demonstrate
    a van der Waals spin valve based on a tunnel junction that comprises only one
    such ferromagnetic layer. Our devices combine an Fe3GeTe2 electrode acting as
    a spin injector together with a paramagnetic tunnel barrier, formed by a CrBr3
    multilayer operated above its Curie temperature. We show that these devices exhibit
    a conductance modulation with values comparable to those of conventional spin
    valves. A quantitative analysis of the magnetoconductance that accounts for the
    field-induced magnetization of CrBr3, including the effect of exchange interaction,
    confirms that the spin valve effect originates from the paramagnetic response
    of the barrier, in the absence of spontaneous magnetization in CrBr3.
  description_type: abstract
  lang: en

## Creator

- name: Fengrui Yao
  role: author
  orcid: https://orcid.org/0000-0003-3754-0628
- name: Volodymyr Multian
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
- name: Ignacio Gutiérrez-Lezama
  role: author
- name: Alberto F. Morpurgo
  role: author
  orcid: https://orcid.org/0000-0003-0974-3620

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Spin valve
  schema: not_defined
- subject: Van der Waals heterostructure
  schema: not_defined
- subject: Ferromagnetic tunnel junction
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Article
    that appeared in final form in Nano Letters, copyright © 2025 American Chemical
    Society. To access the final published article see https://doi.org/10.1021/acs.nanolett.4c06301.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2025-02-19
end_date: 2026-02-19

## Journal

- title: Nano Letters
  issn: '15306984'
  volume: '25'
  issue: '9'
  start_page: 3549
  end_page: 3555

## Conference



## Related item



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## Instrument



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## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Computational method



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## Fileset

- id: 3230b6d4-9036-4f3b-8496-9241b679419d
  filename: 2025A00432G_manuscript.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 6201397
  md5: 8dfbef320562a049394034e5f8c6bd2e
- id: c423112b-162b-44fe-8733-a96484c16723
  filename: 2025A00432G_SI.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 437697
  md5: decf96b16e3fd2cf385765a0882de17d

## Thumbnail

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filename: 2025A00432G_manuscript.docx