# High‐Throughput Optimization of Magnetoresistance Materials Based on Lock‐In Thermography

https://mdr.nims.go.jp/datasets/6b23b47b-8ab8-444f-93a9-fa255eb5a203

## File

- [Advanced Physics Research - 2024 - Modak - High‐Throughput Optimization of Magnetoresistance Materials Based on Lock‐In.pdf](https://mdr.nims.go.jp/filesets/69f07311-4f55-4695-80c9-f4196e389c38/download) ([Detail](https://mdr.nims.go.jp/filesets/69f07311-4f55-4695-80c9-f4196e389c38.md))

## Id

6b23b47b-8ab8-444f-93a9-fa255eb5a203

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-11T02:03:02.887295Z

## Updated at

2024-11-11T07:30:25.517563Z

## Published at

2024-11-11T07:30:25.614620Z

## Doi



## First published url

https://doi.org/10.1002/apxr.202400021

## Date published

2024-05-24

## Recorded date published

2024-8

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: High‐Throughput Optimization of Magnetoresistance Materials Based on Lock‐In
    Thermography
  title_type: original
  lang: en

## Description

- description: With the giant magnetoresistance (GMR) effect serving as a vital component
    in modern spintronic technologies, researchers are dedicating significant efforts
    to improve the performance of GMR devices through material exploration and design
    optimization. However, traditional GMR measurement approaches are inefficient
    for comprehensive material and device optimization. This study proposes a high-throughput
    current-in-plane GMR measurement technique based on thermal imaging of Joule heating
    utilizing lock-in thermography (LIT). This LIT-based technique is advantageous
    for efficiently evaluating films with varying compositions and thickness gradients,
    which is crucial for ongoing material exploration and design optimization to enhance
    the GMR ratio. First, it is demonstrated that using CoFe/Cu multilayers, the simple
    Joule heating measurement based on LIT enables quantitative estimation of the
    GMR ratio. Then, to confirm the usefulness of the proposed method in high-throughput
    material screening, a case study is shown to investigate the GMR of CoCu-based
    granular films with a composition gradient. These techniques allow to determine
    the optimum composition with maximum GMR ratio using the single composition-gradient
    film and reveal Co22Cu78 as the optimal composition, yielding the largest GMR
    ratio among the reported polycrystalline CoCu-based granular films. This demonstration
    accelerates the material and structural optimization of GMR devices.
  description_type: abstract
  lang: und

## Creator

- name: Rajkumar Modak
  role: author
  orcid: https://orcid.org/0000-0001-7939-3289
- name: Takamasa Hirai
  role: author
  orcid: https://orcid.org/0000-0002-5577-8018
- name: Yuya Sakuraba
  role: author
  orcid: https://orcid.org/0000-0003-4618-9550
- name: Seiji Mitani
  role: author
  orcid: https://orcid.org/0000-0002-1348-0774
- name: Koichi Oyanagi
  role: author
  orcid: https://orcid.org/0000-0001-8784-078X
- name: Takumi Yamazaki
  role: author
  orcid: https://orcid.org/0000-0001-5289-8615
- name: Takeshi Seki
  role: author
  orcid: https://orcid.org/0000-0003-3195-7051
- name: Ken‐ichi Uchida
  role: author
  orcid: https://orcid.org/0000-0001-7680-3051

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Lock-in thermography
  schema: not_defined
- subject: Giant magnetoresistance
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Advanced Physics Research
  issn: '27511200'
  volume: '3'
  issue: '8'

## Conference



## Related item



## Funding

- identifier: JPMJER2201
  funder_name: JST
  description: ERATO “Magnetic Thermal Management Materials”
- identifier: 22H04965
  funder_name: JSPS
  description: Grant-in-Aid for Scientific Research (S)
- identifier: 21K14519
  funder_name: JSPS
  description: Grant-in-Aid for Early-Career Scientists
- funder_name: NEC Corporation
- identifier: P21064
  funder_name: JSPS
  description: JSPS Postdoctoral Fellowship for Research in Japan (Standard)

## 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



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## Custom property



## Fileset

- id: 69f07311-4f55-4695-80c9-f4196e389c38
  filename: Advanced Physics Research - 2024 - Modak - High‐Throughput Optimization
    of Magnetoresistance Materials Based on Lock‐In.pdf
  content_type: application/pdf
  size: 4637923
  md5: 571eb271dca9e95bddf9fbf9b15ea811

## Thumbnail

fileset_id: 69f07311-4f55-4695-80c9-f4196e389c38
filename: Advanced Physics Research - 2024 - Modak - High‐Throughput Optimization
  of Magnetoresistance Materials Based on Lock‐In.pdf