# Atomistic model study on thermodynamic properties of (Nd1-xDyx)2Fe14B and dysprosium substitution effect on coercivity in neodymium permanent magnets 

https://mdr.nims.go.jp/datasets/7068bbbf-92b6-49bb-b209-3cca1afa68c3

## File

- [repm2025_Nishino.pdf](https://mdr.nims.go.jp/filesets/43f41940-ac1a-4790-b618-2919742ac2db/download) ([Detail](https://mdr.nims.go.jp/filesets/43f41940-ac1a-4790-b618-2919742ac2db.md))

## Id

7068bbbf-92b6-49bb-b209-3cca1afa68c3

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-08-18T00:44:20.392070Z

## Updated at

2025-10-01T07:30:20.837198Z

## Published at

2025-10-01T07:23:26.453159Z

## Doi

https://doi.org/10.48505/nims.5788

## First published url



## Date published



## Recorded date published



## Resource type

conference_poster

## Manuscript type

na

## Collection



## Title

- title: 'Atomistic model study on thermodynamic properties of (Nd1-xDyx)2Fe14B and
    dysprosium substitution effect on coercivity in neodymium permanent magnets '
  title_type: original
  lang: en

## Description

- description: 'The coercive force (field) of Neodymium (Nd) magnets (Nd₂Fe₁₄B) is
    often enhanced by adding dysprosium (Dy), particularly at high temperatures. To
    better understand the magnetic properties of Dy-substituted systems and the underlying
    mechanisms of coercivity enhancement, it is essential to investigate both the
    thermodynamic properties and dynamic behavior of (Nd₁₋ₓDyₓ)₂Fe₁₄B from a microscopic
    perspective. To this end, we have recently developed an atomistic modeling approach.
    Using atomistic models with microscopic parameters estimated from first-principles
    calculations, we carried out a detailed investigation of the thermodynamic properties
    and dynamical features of (Nd₁₋ₓDyₓ)₂Fe₁₄B. '
  description_type: abstract
  lang: eng

## Creator

- name: Masamichi Nishino
  role: author
  orcid: https://orcid.org/0000-0002-2060-2303
  organization: National Institute for Materials Science
  department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials
    Field/Quantum Solid State Materials Group
- name: Rachida Lamouri
  role: author
  organization: National Institute for Materials Science
  department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials
    Field/Quantum Solid State Materials Group
- name: Seiji Miyashita
  role: author
  organization: Department of Physics, Graduate School of Science, The University
    of Tokyo

## Contact agent



## Publisher



## Managing organization



## Keyword

- subject: neodymium magnets
  schema: not_defined
- subject: dysprosium-substituted magnets
  schema: not_defined
- subject: thermodynamic properties
  schema: not_defined
- subject: dynamics
  schema: not_defined
- subject: coercive force
  schema: not_defined
- subject: atomistic model
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal



## Conference

name: The 28th International Workshop on Rare Earth and Future Permanent Magnets and
  Their Applications (REPM2025)
start_date: 2025-07-27
end_date: 2025-07-31
identifier: https://www.nims.go.jp/mmu/repm2025/

## Related item



## Funding

- identifier: 'Scientific Research B (No. 24 K01332) '
  funder_name: MEXT

## 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: 43f41940-ac1a-4790-b618-2919742ac2db
  filename: repm2025_Nishino.pdf
  content_type: application/pdf
  size: 612535
  md5: e2eac94d5d33056aba8cf6a705d39b70

## Thumbnail

fileset_id: 43f41940-ac1a-4790-b618-2919742ac2db
filename: repm2025_Nishino.pdf