# Multifunctional composite magnet realizing record-high transverse thermoelectric generation

https://mdr.nims.go.jp/datasets/6501a255-8b01-43a0-ad15-2ea7491f86c8

## File

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## Id

6501a255-8b01-43a0-ad15-2ea7491f86c8

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-05-12T01:43:22.230771Z

## Updated at

2025-05-12T03:30:11.738575Z

## Published at

2025-05-12T03:20:46.831016Z

## Doi



## First published url

https://doi.org/10.1039/d4ee04845h

## Date published

2025-03-18

## Recorded date published

2025-5-6

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Multifunctional composite magnet realizing record-high transverse thermoelectric
    generation
  title_type: original
  lang: en

## Description

- description: Permanent magnets are used in various products and essential for human
    society. If omnipresent permanent magnets could directly convert heat into electricity,
    they would lead to innovative energy harvesting and thermal management technologies.
    However, achieving such “multifunctionality” has been difficult due to poor thermoelectric
    performance of conventional magnets. In this work, we develop a multifunctional
    composite magnet (MCM) that enables giant transverse thermoelectric conversion
    while possessing permanent magnet features. MCM comprising alternately and obliquely
    stacked SmCo5/Bi0.2Sb1.8Te3 multilayers exhibits an excellent transverse thermoelectric
    figure of merit zxyT of 0.20 at room temperature owing to the optimized anisotropic
    structure and extremely low interfacial electrical and thermal resistivities between
    the SmCo5 and Bi0.2Sb1.8Te3 layers. The MCM-based thermopile module generates
    a maximum of 204 mW at a temperature difference of 152 K, whose power density
    normalized by the heat transfer area and temperature gradient is not only record-high
    among transverse thermoelectric modules but also comparable to those of commercial
    thermoelectric modules utilizing the Seebeck effect. The multifunctionality of
    our MCM provides unprecedented opportunities for energy harvesting and thermal
    management everywhere permanent magnets are currently used.
  description_type: abstract
  lang: und

## Creator

- 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: Abdulkareem Alasli
  role: author
  orcid: https://orcid.org/0000-0002-1681-0492
- name: Hossein Sepehri-Amin
  role: author
  orcid: https://orcid.org/0000-0002-7856-7897
- name: Yutaka Iwasaki
  role: author
  orcid: https://orcid.org/0000-0002-7317-4939
- name: Hosei Nagano
  role: author
- name: Ken-ichi Uchida
  role: author
  orcid: https://orcid.org/0000-0001-7680-3051

## Contact agent



## Publisher

organization: Royal Society of Chemistry (RSC)

## Managing organization



## Keyword

- subject: transverse thermoelectric conversion
  schema: not_defined
- subject: thermoelectric generation
  schema: not_defined
- subject: permanent magnet
  schema: not_defined
- subject: artificially tilted multilayer
  schema: not_defined
- subject: thermoelectric module
  schema: not_defined

## Rights

- identifier: cc-by-3.0

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Energy & Environmental Science
  issn: '17545692'
  volume: '18'
  issue: '9'
  start_page: 4068
  end_page: 4079

## Conference



## Related item



## Funding

- identifier: JPMJER2201
  funder_name: Exploratory Research for Advanced Technology
- funder_name: NEC Corporation
- identifier: 24K17610
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: ae6b8b2a-201f-4cfc-affb-92f58a845372
  filename: ODSE_SmCo-BST_EES2025.pdf
  content_type: application/pdf
  size: 3396893
  md5: 62825d3e2fae290be8dce07d68adc598
- id: 855d2f34-4265-4046-b9bf-e78b74188abb
  filename: ODSE_SmCo-BST_EES2025_SI.pdf
  content_type: application/pdf
  size: 782464
  md5: 26a7bb5c4c790ac268582d0e5d9e96e9

## Thumbnail

fileset_id: ae6b8b2a-201f-4cfc-affb-92f58a845372
filename: ODSE_SmCo-BST_EES2025.pdf