# Evaluation of spin mixing conductance in Co2FeGa0.5Ge0.5/Pt bilayer and the effect of ultrathin Cu, Ni, Ru, Ta, or Cr insertion layers

https://mdr.nims.go.jp/datasets/c8f2b6e7-070e-4f2a-8072-4b5421b659b1

## File

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- [Fig. 4(a).csv](https://mdr.nims.go.jp/filesets/55d5cccb-7c41-4cb1-ac43-a5a3176f9a4d/download) ([Detail](https://mdr.nims.go.jp/filesets/55d5cccb-7c41-4cb1-ac43-a5a3176f9a4d.md))
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- [Fig. 5.csv](https://mdr.nims.go.jp/filesets/2dd298dd-0213-46c7-9a18-4b32b3863bd4/download) ([Detail](https://mdr.nims.go.jp/filesets/2dd298dd-0213-46c7-9a18-4b32b3863bd4.md))
- [Fig. 6(a).csv](https://mdr.nims.go.jp/filesets/55d6719d-7fb0-4b42-980a-4f7caa8f53f0/download) ([Detail](https://mdr.nims.go.jp/filesets/55d6719d-7fb0-4b42-980a-4f7caa8f53f0.md))
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- [Fig. 7(a).csv](https://mdr.nims.go.jp/filesets/33183ea9-181a-4ce9-8c5e-740886cbbd9a/download) ([Detail](https://mdr.nims.go.jp/filesets/33183ea9-181a-4ce9-8c5e-740886cbbd9a.md))
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## Id

c8f2b6e7-070e-4f2a-8072-4b5421b659b1

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-10-27T02:36:13.117377Z

## Updated at

2025-10-30T00:05:18.910506Z

## Published at

2025-10-27T23:16:31.295216Z

## Doi

https://doi.org/10.48505/nims.5824

## First published url



## Date published



## Recorded date published



## Resource type

dataset

## Manuscript type

na

## Collection



## Title

- title: Evaluation of spin mixing conductance in Co2FeGa0.5Ge0.5/Pt bilayer and the
    effect of ultrathin Cu, Ni, Ru, Ta, or Cr insertion layers
  title_type: original
  lang: en

## Description

- description: Improving the spin mixing conductance at the ferromagnet/heavy metal
    (FM/HM) interface with a low Gilbert damping constant in the FM layer is a key
    requirement for developing efficient spintronic devices. To evaluate the potential
    of Co2FeGa0.5Ge0.5 as the FM layers in such structures, epitaxial Co2FeGa0.5Ge0.5
    single-layer and Co2FeGa0.5Ge0.5/Pt bilayer films were deposited on MgO substrate
    using magnetron sputtering, and their Gilbert damping constants were evaluated
    from ferromagnetic resonance spectra. While the single-layer samples exhibit a
    low damping constant of ~ 1.07×10-3, an enhancement in the damping constant was
    observed in the bilayer samples due to spin pumping across the Co2FeGa0.5Ge0.5/Pt
    interface, from which relatively large spin mixing conductance (g_(eff_Pt)^(↑↓))
    of (2.78±0.09)×1019 m-2 was evaluated. Further, to investigate the effect of interface
    property on g_(eff_Pt)^(↑↓), ultrathin (~ 0.2 nm) Cu, Ni, Ru, Ta, or Cr insertion
    layers were introduced between the Co2FeGa0.5Ge0.5 and Pt. The observed change
    in g_(eff_Pt)^(↑↓) depends on the insertion material, indicating that their physical
    properties, such as magnetic, non-magnetic, antiferromagnetic, light or heavy
    metal, reflect on g_(eff_Pt)^(↑↓)
  description_type: abstract
  lang: eng

## Creator

- name: バト マダブ モハン
  role: author
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Magnetic Functional
    Device Group
- name: SASAKI Taisuke
  role: author
  orcid: https://orcid.org/0000-0002-5952-7638
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Evaluation Field/Microstructure
    Analysis Group
- name: Hirofumi Suto
  role: author
  orcid: https://orcid.org/0000-0003-4387-5862
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Magnetic Functional
    Device Group
- name: A. Perumal
  role: author
  organization: Indian Institute of Technology (IIT) Guwahati
- name: A. Srinivasan
  role: author
  organization: Indian Institute of Technology (IIT) Guwahati
- name: Yuya Sakuraba
  role: author
  orcid: https://orcid.org/0000-0003-4618-9550
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Magnetic Functional
    Device Group

## Contact agent



## Publisher

organization: American Physical Society

## Managing organization



## Keyword

- subject: Spin pumping
  schema: not_defined
- subject: Magnetization dynamics
  schema: not_defined
- subject: Spin current
  schema: not_defined
- subject: Ferromagnetic resonance
  schema: not_defined
- subject: Half-metals
  schema: not_defined
- subject: Heusler alloy
  schema: not_defined
- subject: Magnetic thin films
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review Materials

## Conference



## Related item



## Funding

- funder_name: Advanced Storage Research Consortium
- identifier: JPMJCR21O1
  funder_name: 'JST CREST '
- identifier: JPJ011438
  funder_name: MEXT X-NICS

## 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



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## Thumbnail