# Control of Covalent Bond Enables Efficient Magnetic Cooling

https://mdr.nims.go.jp/datasets/1383425e-26ee-4634-9d37-f1c65d461f51

## File

- [Advanced Materials - 2025 - Tang - Control of Covalent Bond Enables Efficient Magnetic Cooling.pdf](https://mdr.nims.go.jp/filesets/68045c85-c1f8-4c66-bf31-cc2ebdac72da/download) ([Detail](https://mdr.nims.go.jp/filesets/68045c85-c1f8-4c66-bf31-cc2ebdac72da.md))

## Id

1383425e-26ee-4634-9d37-f1c65d461f51

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-01-14T04:56:31.995853Z

## Updated at

2026-01-14T05:47:52.385733Z

## Published at

2026-01-14T07:22:13.608272Z

## Doi



## First published url

https://doi.org/10.1002/adma.202514295

## Date published

2025-12-17

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Control of Covalent Bond Enables Efficient Magnetic Cooling
  title_type: original
  lang: en

## Description

- description: 'Magnetic cooling, harnessing the temperature change in matter when
    exposed to a magnetic field, presents an energy-efficient and climate-friendly
    alternative to traditional vapor-compression refrigeration systems, with a significantly
    lower global warming potential. The advancement of this technology would be accelerated
    if irreversible losses arising from hysteresis in magnetocaloric materials were
    minimized. Despite extensive efforts to manipulate crystal lattice constants at
    the unit-cell level, mitigating hysteresis often compromises cooling performance.
    Herein, we address this persistent challenge by forming Sn(Ge)3Sn(Ge)3 bonds
    within the unit cell of the Gd5Ge4 compound. Our approach enables an energetically
    favorable phase transition, leading to the elimination of thermal hysteresis.
    Consequently, we achieve a synergistic improvement of two key magnetocaloric figures
    of merit: a larger magnetic entropy change and a twofold increase in the reversible
    adiabatic temperature change (from 3.8 to 8 K) in the Gd5Sn2Ge2 compound. Such
    synergies can be extended over a wide temperature range of 40–160 K. This study
    demonstrates a paradigm shift in mastering hysteresis toward simultaneously achieving
    exceptional magnetocaloric metrics and opens up promising avenues for gas liquefaction
    applications in the longstanding pursuit of sustainable energy solutions.'
  description_type: abstract
  lang: und

## Creator

- name: Xin Tang
  role: author
  orcid: https://orcid.org/0000-0001-6762-6145
- name: Yoshio Miura
  role: author
- name: Noriki Terada
  role: author
  orcid: https://orcid.org/0000-0002-8676-5586
- name: Enda Xiao
  role: author
  orcid: https://orcid.org/0000-0002-4372-1575
- name: Shintaro Kobayashi
  role: author
- name: Allan Döring
  role: author
- name: Terumasa Tadano
  role: author
  orcid: https://orcid.org/0000-0002-8132-2161
- name: Andres Martin‐Cid
  role: author
  orcid: https://orcid.org/0000-0002-9711-288X
- name: Takuo Ohkochi
  role: author
- name: Shogo Kawaguchi
  role: author
- name: Yoshitaka Matsushita
  role: author
  orcid: https://orcid.org/0000-0002-4968-8905
- name: Tadakatsu Ohkubo
  role: author
  orcid: https://orcid.org/0000-0003-3548-1951
- name: Tetsuya Nakamura
  role: author
- name: Konstantin Skokov
  role: author
- name: Oliver Gutfleisch
  role: author
- name: Kazuhiro Hono
  role: author
  orcid: https://orcid.org/0000-0001-7367-0193
- name: Hossein Sepehri‐Amin
  role: author
  orcid: https://orcid.org/0000-0002-7856-7897

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: magnetocaloric materials
  schema: not_defined
- subject: hydrogen liquefaction
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Advanced Materials
  issn: '09359648'
  article_number: e14295

## Conference



## Related item



## Funding

- identifier: CRC/TRR 270
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: '405553726'
  funder_name: Deutsche Forschungsgemeinschaft

## Instrument



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## Instrument managing organization



## Measurement method



## Specimen



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## Computational method



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## Fileset

- id: 68045c85-c1f8-4c66-bf31-cc2ebdac72da
  filename: Advanced Materials - 2025 - Tang - Control of Covalent Bond Enables Efficient
    Magnetic Cooling.pdf
  content_type: application/pdf
  size: 4858715
  md5: 6d0b34573eca168d015c03cdb0a24c38

## Thumbnail

fileset_id: 68045c85-c1f8-4c66-bf31-cc2ebdac72da
filename: Advanced Materials - 2025 - Tang - Control of Covalent Bond Enables Efficient
  Magnetic Cooling.pdf