# Permittivity and remanent polarization contributions to the electrocaloric effect in (Ba, Sr)TiO3 under unipolar field

https://mdr.nims.go.jp/datasets/fdd49d3d-135e-4ee7-93e8-b6e4bf21b2d5

## File

- [Tanaka et al ECE_ 完成版_MDR.pdf](https://mdr.nims.go.jp/filesets/804ea137-0745-46a9-892c-915360099c46/download) ([Detail](https://mdr.nims.go.jp/filesets/804ea137-0745-46a9-892c-915360099c46.md))

## Id

fdd49d3d-135e-4ee7-93e8-b6e4bf21b2d5

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-04-21T08:22:17.758343Z

## Updated at

2025-04-22T03:30:19.603022Z

## Published at

2025-04-22T03:25:17.054125Z

## Doi

https://doi.org/10.48505/nims.5447

## First published url

https://doi.org/10.1063/5.0259805

## Date published

2025-03-01

## Recorded date published

2025-3-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Permittivity and remanent polarization contributions to the electrocaloric
    effect in (Ba, Sr)TiO3 under unipolar field
  title_type: original
  lang: en

## Description

- description: "The electrocaloric effect (ECE)-induced temperature change (ΔT) in
    (Ba, Sr)TiO3-based ferroelectrics under unipolar electric fields was analyzed
    from the separate contributions of the dielectric constant (ε) and remanent polarization
    (Pr) based on the Maxwell relation. Consideration of the contributions of both
    ε and Pr is particularly important in a unipolar electric field operation, such
    as on/off field switching used in device applications. Direct ΔT measurements
    were also performed based on the lock-in thermography technique to verify the
    accuracy of the ΔT intensity estimated by the indirect method. The indirect and
    direct ΔT values were largely consistent. The ΔT intensity near the peak temperature
    of ΔT was dominated by the Pr contribution; a large \U0001D715\U0001D443\U0001D45F/\U0001D715\U0001D447
    was necessary to increase the overall ΔT magnitude. In contrast, a large \U0001D715\U0001D700/\U0001D715\U0001D447
    was essential to expand the operating temperature range of ΔT at temperatures
    higher than the dielectric maximum temperature. Quantitative understanding of
    the contributions of both ε and Pr to ΔT in unipolar electric fields is expected
    to guide the search for materials with a superior ECE."
  description_type: abstract
  lang: und

## Creator

- name: Yukiya Tanaka
  role: author
  orcid: https://orcid.org/0009-0002-3209-9925
- name: Ryo Iguchi
  role: author
  orcid: https://orcid.org/0000-0002-8112-4608
- name: Takashi Teranishi
  role: author
  orcid: https://orcid.org/0000-0001-8755-1224
- name: Shinya Kondo
  role: author
  orcid: https://orcid.org/0000-0002-6194-4879
- name: Akira Kishimoto
  role: author
  orcid: https://orcid.org/0000-0003-4949-2723

## Contact agent



## Publisher

organization: AIP Publishing

## Managing organization



## Keyword

- subject: electrocaloric effect
  schema: not_defined
- subject: lock-in thermography
  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 Yukiya Tanaka, Ryo Iguchi, Takashi Teranishi, Shinya Kondo, Akira Kishimoto;
    Permittivity and remanent polarization contributions to the electrocaloric effect
    in (Ba, Sr)TiO3 under unipolar field. Appl. Phys. Lett. 31 March 2025; 126 (13):
    132902 and may be found at https://doi.org/10.1063/5.0259805.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Applied Physics Letters
  issn: '00036951'
  volume: '126'
  issue: '13'

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## Related item



## Funding

- identifier: 24K01162
  funder_name: Japan Society for the Promotion of Science
- identifier: 24K01334
  funder_name: Japan Society for the Promotion of Science
- identifier: 22H04965
  funder_name: Japan Society for the Promotion of Science

## Instrument



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## Measurement method



## Specimen



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## Fileset

- id: 804ea137-0745-46a9-892c-915360099c46
  filename: Tanaka et al ECE_ 完成版_MDR.pdf
  content_type: application/pdf
  size: 1625503
  md5: 8ab33b433f0832d333566b7f1b4c3326

## Thumbnail

fileset_id: 804ea137-0745-46a9-892c-915360099c46
filename: Tanaka et al ECE_ 完成版_MDR.pdf