# Thermal imaging of anomalous Ettingshausen effect at low temperatures using infrared lock-in thermography

https://mdr.nims.go.jp/datasets/c7acbfe5-fad1-4e40-8ca4-b7a048822cd6

## File

- [Imamura_main-text_APL25-AR04203R.pdf](https://mdr.nims.go.jp/filesets/2482533a-d305-487b-acdc-a5c67922fa5e/download) ([Detail](https://mdr.nims.go.jp/filesets/2482533a-d305-487b-acdc-a5c67922fa5e.md))

## Id

c7acbfe5-fad1-4e40-8ca4-b7a048822cd6

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-09-10T09:53:46.732522Z

## Updated at

2025-09-11T07:30:21.514842Z

## Published at

2025-09-11T07:20:18.032871Z

## Doi

https://doi.org/10.48505/nims.5755

## First published url

https://doi.org/10.1063/5.0279908

## Date published

2025-09-08

## Recorded date published

2025-9-8

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Thermal imaging of anomalous Ettingshausen effect at low temperatures using
    infrared lock-in thermography
  title_type: original
  lang: en

## Description

- description: Thermal imaging technology has significantly advanced the fields of
    thermal engineering and fundamental physics by providing precise and non-contact
    temperature measurements. In the field of spin caloritronics, an active infrared
    emission microscopy based on the lock-in thermography (LIT) has greatly developed
    thermoelectric and thermal transport physics in magnetic materials and their hybrid
    structures, but measurements have been limited to at or above room temperature.
    Here, we report on the measurements of transverse thermoelectric conversion in
    a magnetic material, the anomalous Ettingshausen effect (AEE), below room temperature
    using the LIT technique. Although the infrared emission decreases with decreasing
    temperature, LIT with the high temperature resolution allows to observe the AEE-induced
    temperature modulation in a ferromagnetic Heusler alloy Co2MnGa slab down to 200
    K and reliably quantify the anomalous Nernst coefficient down to around 240 K.
    The methodology demonstrated in this work will pave the way for further developments
    in both fundamental research and practical applications in spin caloritronics.
  description_type: abstract
  lang: eng

## Creator

- name: Takumi Imamura
  role: author
  orcid: https://orcid.org/0009-0003-8005-7591
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Spin Caloritronics
    Group
- name: Takamasa Hirai
  role: author
  orcid: https://orcid.org/0000-0002-5577-8018
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Spin Caloritronics
    Group
- name: Weinan Zhou
  role: author
  orcid: https://orcid.org/0000-0003-2946-9913
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Magnetic Functional
    Device Group
- 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
- name: Ken-ichi Uchida
  role: author
  orcid: https://orcid.org/0000-0001-7680-3051
  organization: National Institute for Materials Science
  department: Research Center for Magnetic and Spintronic Materials/Spin Caloritronics
    Group

## Contact agent



## Publisher

organization: American Institute of Physics

## Managing organization



## Keyword

- subject: Lock-in thermography
  schema: not_defined
- subject: Infrared imaging
  schema: not_defined
- subject: Thermoelectric conversion
  schema: not_defined
- subject: Anomalous Ettingshausen effect
  schema: not_defined
- subject: Heusler alloy
  schema: not_defined

## Rights

- description: 'This article may be downloaded for personal use only. Any other use
    requires prior permission of the author and AIP Publishing. This article appeared
    in Takumi Imamura, Takamasa Hirai, Weinan Zhou, Yuya Sakuraba, Ken-ichi Uchida;
    Thermal imaging of anomalous Ettingshausen effect at low temperatures using infrared
    lock-in thermography. Appl. Phys. Lett. 8 September 2025; 127 (10): 102401 and
    may be found at https://doi.org/10.1063/5.0279908.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: APPLIED PHYSICS LETTERS
  issn: '00036951'
  volume: '127'
  issue: '10'

## Conference



## Related item



## Funding

- identifier: JPMJER2201
  funder_name: JST

## 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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## Fileset

- id: 2482533a-d305-487b-acdc-a5c67922fa5e
  filename: Imamura_main-text_APL25-AR04203R.pdf
  content_type: application/pdf
  size: 811375
  md5: 493f595c2233d3907cc8d2ead81414cc

## Thumbnail

fileset_id: 2482533a-d305-487b-acdc-a5c67922fa5e
filename: Imamura_main-text_APL25-AR04203R.pdf