# Influence of spacer layers on spin transport efficiency in                    <math>                      <mrow>                        <msub>                          <mi>Mn</mi>                          <mn>3</mn>                        </msub>                        <mrow>                          <mi>PtN</mi>                          <mo>/</mo>                          <mi>CoFeB</mi>                        </mrow>                      </mrow>                    </math>                    heterostructures

https://mdr.nims.go.jp/datasets/39550b8e-1991-449d-b494-ee6e72bf5726

## File

- [Manuscript_R1_wo highlight.docx](https://mdr.nims.go.jp/filesets/12e84862-422d-4b89-a18a-fd16b566498a/download) ([Detail](https://mdr.nims.go.jp/filesets/12e84862-422d-4b89-a18a-fd16b566498a.md))

## Id

39550b8e-1991-449d-b494-ee6e72bf5726

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-05T13:57:25.653566Z

## Updated at

2026-02-07T07:30:10.315956Z

## Published at

2026-02-07T03:34:48.097969Z

## Doi

https://doi.org/10.48505/nims.6173

## First published url

https://doi.org/10.1103/4448-xznx

## Date published

2026-01-30

## Recorded date published

2026-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: |-
    Influence of spacer layers on spin transport efficiency in
                        <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">
                          <mml:mrow>
                            <mml:msub>
                              <mml:mi mathvariant="normal">Mn</mml:mi>
                              <mml:mn>3</mml:mn>
                            </mml:msub>
                            <mml:mrow>
                              <mml:mi>PtN</mml:mi>
                              <mml:mo>/</mml:mo>
                              <mml:mi>CoFeB</mml:mi>
                            </mml:mrow>
                          </mml:mrow>
                        </mml:math>
                        heterostructures
  title_type: original
  lang: en

## Description

- description: Epitaxially grown multilayers, Mn3PtN/Cu/Co20Fe60B20, with a thickness
    of the Cu spacer layers from 0 to 5 nm, were prepared on (100)-oriented MgO substrates.
    The multilayer exhibited a pronounced exchange bias field in the absence of a
    Cu spacer, which became minimal with the introduction of a finite Cu spacer. We
    measured spin-torque ferromagnetic resonance to estimate the spin-Hall angle (θSH)
    in the multilayers, emphasizing the role of the Cu spacer layer in the spin current
    transport across the interface. We found that both θSH and the effective Gilbert
    damping parameter decrease significantly upon the insertion of Cu, suggesting
    that the spin-orbit torque (SOT) primarily originates from interfaces. A correlation
    between SOT and exchange bias with the Cu spacer layer indicates the significance
    of interfacial contributions. These experimental results demonstrate the critical
    importance of interfacial engineering in antiferromagnetic-based spintronics,
    revealing an alternative mechanism for generating spin torque in magnetic heterostructures
    that is essential for controlling magnetization dynamics in energy-efficient spintronics
    applications.
  description_type: abstract
  lang: und

## Creator

- name: Nitipriya Tripathi
  role: author
  orcid: https://orcid.org/0009-0001-8178-709X
- name: Shrawan K. Mishra
  role: author
  orcid: https://orcid.org/0000-0001-6140-7443
- name: Shinji Isogami
  role: author
  orcid: https://orcid.org/0000-0001-7230-6090

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Antiferromagnet
  schema: not_defined
- subject: Spin Hall effect
  schema: not_defined

## Rights

- description: "©2026 American Physical Society"
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Physical Review Materials
  issn: '24759953'
  volume: '10'
  issue: '1'
  article_number: '014415'

## Conference



## Related item



## Funding

- funder_name: Department of Science and Technology, Ministry of Science and Technology,
    India
- funder_name: Indian Institute of Technology (BHU) Varanasi

## Instrument



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## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: 12e84862-422d-4b89-a18a-fd16b566498a
  filename: Manuscript_R1_wo highlight.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 678124
  md5: 98747b27a817ff79bb4af4ab1ff018de

## Thumbnail

fileset_id: 12e84862-422d-4b89-a18a-fd16b566498a
filename: Manuscript_R1_wo highlight.docx