# Excellent intrinsic magnetic properties in the TbCu7-type Sm-Fe-N compound

https://mdr.nims.go.jp/datasets/ac9554cf-16ea-448e-8da5-e9624c31749f

## File

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## Id

ac9554cf-16ea-448e-8da5-e9624c31749f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-08T23:49:36.490136Z

## Updated at

2024-12-10T07:55:12.380825Z

## Published at

2024-12-10T07:55:12.633871Z

## Doi



## First published url

https://doi.org/10.1016/j.actamat.2024.119996

## Date published

2024-05-10

## Recorded date published

2024-8

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Excellent intrinsic magnetic properties in the TbCu7-type Sm-Fe-N compound
  title_type: original
  lang: en

## Description

- description: We report excellent intrinsic magnetic properties of SmFe9Nδ (δ=0,
    0.5, 0.7 and 1.1) epitaxial thin films with TbCu7-type crystal structure, i.e.,
    room temperature saturation magnetization (μ0Ms) of 1.64 T, Curie temperature
    (Tc) of 771 K and magnetic anisotropy field (μ0HA) of ~22 T for δ=1.1 the saturation
    magnetization of which is superior to that of Sm2Fe17N3 (μ0Ms= 1.57 T) and Nd2Fe14B
    compounds (μ0Ms= 1.61 T). X-ray diffraction and transmission electron microscopy
    revealed that the thin films have a highly textured single TbCu7-type phase with
    its c-axis perpendicular to the film. Heat treatment of the thin films under N
    atmosphere expands the lattice and increases the unit cell volume of the SmFe9Nδ
    structure, which also switches the magnetocrystalline anisotropy from easy plane
    (δ = 0) to easy axis (δ=1.1). Furthermore, the μ0Ms and Tc of SmFe9Nδ films also
    increased with increasing nitrogen content in the structure, leading to promising
    intrinsic magnetic properties. Based on this study, we can conclude that the rare-earth
    lean SmFe9Nδ based TbCu7-type compound has potential for the development of high
    performance anisotropic bonded magnets with superior performance to that of existing
    anisotropic Sm2Fe17N3 or Nd-Fe-B bonded magnets.
  description_type: abstract
  lang: und

## Creator

- name: A.R. Dilipan
  role: author
- name: D. Ogawa
  role: author
- name: H. Sepehri-Amin
  role: author
  orcid: https://orcid.org/0000-0002-7856-7897
- name: P. Tozman
  role: author
  orcid: https://orcid.org/0000-0002-8848-0197
- name: T. Hiroto
  role: author
  orcid: https://orcid.org/0000-0002-6176-5782
- name: K. Hono
  role: author
  orcid: https://orcid.org/0000-0001-7367-0193
- name: Y.K. Takahashi
  role: author
  orcid: https://orcid.org/0000-0001-9197-7236

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Permanent magnetic thin films
  schema: not_defined
- subject: TbCu7-type SmFe9
  schema: not_defined
- subject: Intrinsic magnetic properties
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Acta Materialia
  issn: '13596454'
  volume: '274'
  article_number: '119996'

## Conference



## Related item



## Funding



## 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: 68470edf-03fd-467f-af18-1506eacbfaa2
  filename: 1-s2.0-S1359645424003483-main (1).pdf
  content_type: application/pdf
  size: 10175021
  md5: b88ed27dfa5a5bf6bcd0a011abfdf393

## Thumbnail

fileset_id: 68470edf-03fd-467f-af18-1506eacbfaa2
filename: 1-s2.0-S1359645424003483-main (1).pdf