# Magnetic properties and magnetocaloric effect of DyCo9Si4

https://mdr.nims.go.jp/datasets/a5316146-f92b-49ec-8fa3-fdcfdedc1ef9

## File

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## Id

a5316146-f92b-49ec-8fa3-fdcfdedc1ef9

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-12T03:22:06.058866Z

## Updated at

2024-11-12T07:05:05.297449Z

## Published at

2026-01-24T08:40:48.900193Z

## Doi

https://doi.org/10.48505/nims.4949

## First published url

https://doi.org/10.1016/j.jallcom.2024.173653

## Date published

2024-01-24

## Recorded date published

2024-4

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Magnetic properties and magnetocaloric effect of DyCo9Si4
  title_type: original
  lang: en

## Description

- description: 正方晶LaFe9Si4型構造DyCo9Si4の多結晶試料をアーク溶解により合成した。磁化と比熱の測定により、40 K（Tc）と20 K（Tm）で二つの磁気異常がみられた。Tcでの転移はCo部分格子の強磁性転移であり、Dy3+の磁気モーメントはTC以下で徐々に整列しTm以下で長距離秩序となる。2
    Kでの7 Tまでの磁化測定から、Dy3+の磁気モーメントがCoと反強磁性的に結合しフェリ磁性となっていることが分かった。また、50 Tまでのパルス磁場による低温磁化測定により、20
    T付近でスピンフリップ転移を起こすことが分かった。スピンフリップ転移は温度上昇でブロードになるもののTcでも残っていることから強い反強磁性結合を示唆する。これらの測定により準断熱プロセスとして求めた磁気熱量効果では、5
    Tまでの磁場変化でTm付近で最大エントロピー変化ΔS = 5 J/kg Kと見積もられ、50から0 TではTc付近で最大値ΔS = 24 J/kg Kとなった。
  description_type: abstract
  lang: eng

## Creator

- name: Naohito Tsujii
  role: author
  orcid: https://orcid.org/0000-0002-6181-5911
  organization: National Institute for Materials Science
  department: Research Center for Materials Nanoarchitectonics (MANA)/Nanomaterials
    Field/Thermal Energy Materials Group
  ror: https://ror.org/026v1ze26
- name: Atsushi Miyake
  role: author
  organization: Institute for Materials Research, Tohoku University
- name: Masashi Tokunaga
  role: author
  organization: ISSP, Univ. of Tokyo
- name: Jaroslav Valenta
  role: author
  organization: National Institute for Materials Science
  department: Research Center for Materials Nanoarchitectonics (MANA)/Nanomaterials
    Field/Thermal Energy Materials Group
  ror: https://ror.org/026v1ze26
- name: Hiroya Sakurai
  role: author
  orcid: https://orcid.org/0000-0003-1964-6023
  organization: National Institute for Materials Science
  department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials
    Field/Frontier Superconducting Materials Group
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Elsevier

## Managing organization



## Keyword

- subject: DyCo9Si4
  schema: not_defined

## Rights

- description: "© 2024. This manuscript version is made available under the CC-BY-NC-ND
    4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/"
  identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-01-24
end_date: 2026-01-24

## Journal

- title: Journal of Alloys and Compounds
  issn: '09258388'
  volume: '980'
  article_number: '173653'

## Conference



## Related item



## Funding

- identifier: 21F21322
  funder_name: JSPS
- identifier: 22H01761
  funder_name: JSPS
- identifier: JPMJMI18A3
  funder_name: JST

## 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: 30710700-5428-4bc0-8ba1-6187f2b233a9
  filename: DyCo9Si4_manuscript_revision_clean.pdf
  content_type: application/pdf
  size: 1388320
  md5: 2d3fce23a1a80d287c0b7fbc25c1b3fc

## Thumbnail

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filename: DyCo9Si4_manuscript_revision_clean.pdf