# Trans-scale spin Seebeck effect in nanostructured bulk composites based on magnetic insulator

https://mdr.nims.go.jp/datasets/20802368-cfd1-48b5-b343-4a25faea29fd

## File

- [s41467-026-75232-0 (1).pdf](https://mdr.nims.go.jp/filesets/633f9eb6-303f-4cac-a947-5842ef450112/download) ([Detail](https://mdr.nims.go.jp/filesets/633f9eb6-303f-4cac-a947-5842ef450112.md))

## Id

20802368-cfd1-48b5-b343-4a25faea29fd

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-08-09T04:53:09.069337Z

## Updated at

2026-08-09T04:55:15.272098Z

## Published at

2026-08-17T07:29:48.728541Z

## Doi



## First published url

https://doi.org/10.1038/s41467-026-75232-0

## Date published

2026-07-21

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Trans-scale spin Seebeck effect in nanostructured bulk composites based on
    magnetic insulator
  title_type: original
  lang: en

## Description

- description: The spin Seebeck effect enables thermoelectric conversion through thermally
    generated spin currents in magnetic materials, offering a promising transverse
    geometry for scalable devices. However, conventional spin Seebeck devices are
    confined to nanoscale thin-film architectures, with significantly restricted output
    power due to the intrinsic constraints of spin and magnon diffusion lengths. Here,
    we demonstrate a trans-scale spin Seebeck effect using nanostructured bulk composites
    composed of Pt-coated yttrium iron garnet powders fabricated via dynamic powder
    sputtering and low-temperature sintering. The resulting three-dimensional composites
    exhibit continuous Pt channels and robust mechanical integrity. Transverse thermoelectric
    measurements reveal isotropic spin Seebeck signals at the bulk scale. Power analysis
    indicates that the three-dimensional architecture enables scalable volumetric
    thermoelectric power generation beyond diffusion-limited thin-film spin Seebeck
    geometries. This work establishes a scalable platform for spin Seebeck thermoelectric
    conversion, bridging nanoscale spin caloritronics with macroscopic device integration.
  description_type: abstract
  lang: und

## Creator

- name: Sang J. Park
  role: author
  orcid: https://orcid.org/0000-0003-1684-4876
- name: Keisuke Hirata
  role: author
  orcid: https://orcid.org/0000-0002-0917-3907
- name: Hossein Sepehri-Amin
  role: author
  orcid: https://orcid.org/0000-0002-7856-7897
- name: Fuyuki Ando
  role: author
  orcid: https://orcid.org/0009-0003-7789-8170
- name: Takamasa Hirai
  role: author
  orcid: https://orcid.org/0000-0002-5577-8018
- name: Ken-ichi Uchida
  role: author
  orcid: https://orcid.org/0000-0001-7680-3051

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: spin caloritronics
  schema: not_defined
- subject: spin Seebeck effect
  schema: not_defined
- subject: magnetic material
  schema: not_defined
- subject: thermoelectrics
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '17'
  issue: '1'
  article_number: '6389'

## Conference



## Related item



## Funding

- identifier: JPMJER2201
  funder_name: MEXT | JST | Exploratory Research for Advanced Technology

## Instrument



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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: 633f9eb6-303f-4cac-a947-5842ef450112
  filename: s41467-026-75232-0 (1).pdf
  content_type: application/pdf
  size: 1713593
  md5: d8c70518a1eb4fe0c6849e6188acaecf

## Thumbnail

fileset_id: 633f9eb6-303f-4cac-a947-5842ef450112
filename: s41467-026-75232-0 (1).pdf