# Magnetothermal resistance effect in a <math>  <mrow>    <mi>C</mi>    <msub>      <mi>o</mi>      <mn>50</mn>    </msub>    <mi>F</mi>    <msub>      <mi>e</mi>      <mn>50</mn>    </msub>  </mrow>  <mtext>/</mtext>  <mi>Cu</mi></math> multilayer studied via analysis of electron and lattice thermal conductivities

https://mdr.nims.go.jp/datasets/404ccdd0-231b-48d9-a328-2dc8ce5ea5e4

## File

- [Makino_CoFe-Cu submission_accepted final_FM.pdf](https://mdr.nims.go.jp/filesets/f5a2c5f6-350d-4e09-b5bc-197384b9d8e3/download) ([Detail](https://mdr.nims.go.jp/filesets/f5a2c5f6-350d-4e09-b5bc-197384b9d8e3.md))

## Id

404ccdd0-231b-48d9-a328-2dc8ce5ea5e4

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-25T07:42:14.933165Z

## Updated at

2026-01-05T00:13:33.574691Z

## Published at

2026-01-05T03:20:36.647495Z

## Doi

https://doi.org/10.48505/nims.6090

## First published url

https://doi.org/10.1103/pd57-gcd5

## Date published

2025-08-04

## Recorded date published

2025-8

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Magnetothermal resistance effect in a <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi
    mathvariant="normal">C</mml:mi><mml:msub><mml:mi mathvariant="normal">o</mml:mi><mml:mn>50</mml:mn></mml:msub><mml:mi
    mathvariant="normal">F</mml:mi><mml:msub><mml:mi mathvariant="normal">e</mml:mi><mml:mn>50</mml:mn></mml:msub></mml:mrow><mml:mtext>/</mml:mtext><mml:mi
    mathvariant="normal">Cu</mml:mi></mml:math> multilayer studied via analysis of
    electron and lattice thermal conductivities
  title_type: original
  lang: en

## Description

- description: "This study investigates the giant magnetothermal resistance (GMTR)
    effect in a fully-bcc epitaxial\r\nCo50Fe50/Cu multilayer through both experimental
    and theoretical approaches. The applied magnetic field results in a giant change
    of the cross-plane thermal conductivity (κ) of 37 W m−1 K−1, which reaches 1.5
    times larger than the previously reported value for a magnetic multilayer and
    records the highest value at room temperature among the other solid-state thermal
    switching materials working on different principles. We investigated the electron
    thermal conductivity for exploring the remarkable κ by the two-current-series-resistor
    model combined with the Wiedemann-Franz law. However, the result shows the electron
    contribution accounts for only\r\n35% of the κ, indicating the presence of additional
    spin-dependent heat carriers. Further investigation of the lattice thermal conductivity,
    which is expected to be spin independent, using nonequilibrium molecular dynamics
    simulations suggests a striking contrast: the additional spin-dependent heat carrier
    contribution is significantly enhanced in the parallel magnetization configuration
    but nearly negligible in the antiparallel configuration. These findings provide
    a fundamental insight into the origin of large GMTR effect and highlight its potential
    of active\r\nthermal management technologies for future electronic devices."
  description_type: abstract
  lang: und

## Creator

- name: Fuya Makino
  role: author
  orcid: https://orcid.org/0009-0004-4578-124X
- name: Takamasa Hirai
  role: author
  orcid: https://orcid.org/0000-0002-5577-8018
- name: Takuma Shiga
  role: author
  orcid: https://orcid.org/0000-0002-5103-7853
- name: Hirofumi Suto
  role: author
  orcid: https://orcid.org/0000-0003-4387-5862
- name: Hiroshi Fujihisa
  role: author
- name: Koichi Oyanagi
  role: author
  orcid: https://orcid.org/0000-0001-8784-078X
- name: Satoru Kobayashi
  role: author
  orcid: https://orcid.org/0000-0002-3545-2977
- name: Taisuke Sasaki
  role: author
  orcid: https://orcid.org/0000-0002-5952-7638
- name: Takashi Yagi
  role: author
- name: Ken-ichi Uchida
  role: author
  orcid: https://orcid.org/0000-0001-7680-3051
- name: Yuya Sakuraba
  role: author
  orcid: https://orcid.org/0000-0003-4618-9550

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Magnetothermal resistance
  schema: not_defined
- subject: magnetic multilayer
  schema: not_defined
- subject: bcc Cu
  schema: not_defined

## Rights

- description: "©2025 American Physical Society"
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review B
  issn: '24699950'
  volume: '112'
  issue: '5'
  article_number: '054407'

## Conference



## Related item



## Funding

- identifier: JPMJER2201
  funder_name: Japan Science and Technology Corporation
- identifier: JPMJCR17I1
  funder_name: Japan Science and Technology Corporation
- identifier: JPMJFR222G
  funder_name: Japan Science and Technology Corporation
- identifier: 22K20495
  funder_name: Japan Society for the Promotion of Science
- identifier: 22H04965
  funder_name: Japan Society for the Promotion of Science
- funder_name: Thermal and Electric Energy Technology Foundation

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## Fileset

- id: f5a2c5f6-350d-4e09-b5bc-197384b9d8e3
  filename: Makino_CoFe-Cu submission_accepted final_FM.pdf
  content_type: application/pdf
  size: 1885035
  md5: ca25ee2b7c74b91c64878c68cc1a3918

## Thumbnail

fileset_id: f5a2c5f6-350d-4e09-b5bc-197384b9d8e3
filename: Makino_CoFe-Cu submission_accepted final_FM.pdf