# Theoretical study of the effect of lattice dynamics on the damping constant of FePt at finite temperature

https://mdr.nims.go.jp/datasets/463394b5-20bb-47f9-8cad-2c6d6411fb87

## File

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## Id

463394b5-20bb-47f9-8cad-2c6d6411fb87

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-05-24T01:55:30.301916Z

## Updated at

2024-12-20T06:09:41.467371Z

## Published at

2024-12-20T07:31:37.562145Z

## Doi

https://doi.org/10.48505/nims.5168

## First published url

https://doi.org/10.1103/physrevb.108.094426

## Date published

2023-09-15

## Recorded date published

2023-9

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Theoretical study of the effect of lattice dynamics on the damping constant
    of FePt at finite temperature
  title_type: original
  lang: en

## Description

- description: Understanding magnetic damping behavior at finite temperatures is crucial
    for magnetization reversal, especially in heat-assisted magnetic recording (HAMR)
    media. In this paper, we calculate the intrinsic magnetic damping of L10-FePt,
    which is the prospective HAMR media, based on the Kamberský torque correlation
    model and the modified frozen thermal lattice disorder approach. Using the temperature-dependent
    scattering rate, the magnetic damping showed nonmonotonic behavior and slightly
    increased with increasing temperature, indicating that the lattice vibration enhances
    the interband transition around the Fermi level. Comparison of our results with
    the previous theoretical and experimental works clarified that, because the intrinsic
    damping of L10-FePt was always enhanced at high temperature, the reduction of
    the damping around the Curie temperature in the recent experiment emphasizes the
    importance of extrinsic contributions of damping for HAMR application.
  description_type: abstract
  lang: en

## Creator

- name: Ivan Kurniawan
  role: author
  orcid: https://orcid.org/0000-0001-5419-0047
  organization: National Institute for Materials Science
- name: Yoshio Miura
  role: author
  orcid: https://orcid.org/0000-0002-5605-5452
  organization: National Institute for Materials Science
- name: Guangzong Xing
  role: author
  orcid: https://orcid.org/0000-0002-8299-8585
  organization: National Institute for Materials Science
- name: Terumasa Tadano
  role: author
  orcid: https://orcid.org/0000-0002-8132-2161
  organization: National Institute for Materials Science
- name: Kazuhiro Hono
  role: author
  orcid: https://orcid.org/0000-0001-7367-0193
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: First-principles calculations, Lattice dynamics, Magnetization dynamics,
    Spin-orbit torque
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review B
  issn: '24699969'
  volume: '108'
  article_number: '094426'

## Conference



## Related item



## Funding

- funder_name: National Institute for Materials Science
- identifier: JP17H06152
  funder_name: Japan Society for the Promotion of Science
- identifier: JP20H00299
  funder_name: Japan Society for the Promotion of Science
- identifier: JP20H02190
  funder_name: Japan Society for the Promotion of Science
- identifier: JP22H04966
  funder_name: Japan Society for the Promotion of Science
- funder_name: Research Institute of Electrical Communication, Tohoku University
- funder_name: CSRN of Osaka University

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## Fileset

- id: a59eeb57-45ff-476b-a165-51d3eb6a96ef
  filename: final_version_supplemental.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 326584
  md5: 79edf24550a8e710de848ad94f436c4e
- id: 78714f20-4682-4899-9942-f3628fe76764
  filename: final_version_finite_temp_damping_FePt.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
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## Thumbnail

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filename: final_version_finite_temp_damping_FePt.docx