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Description:

This letter proposes and demonstrates a flexible architecture for an anomalous-Nernst-effect -based heat flux sensor inspired by kirigami, a traditional Japanese paper-cutting art. A prototype device comprises an amorphous Sm19Co81 film and Ta/Au electrode on a flexible substrate pre-patterned with a periodic-cutting kirigami structure. The estimated heat flux sensitivity of the kirigami-structured sensor was comparable to that of a conventional sensor without kirigami structure and remained unchanged even when it was stretched by 10%. Our approach opens a pathway toward versatile and mechanically compliant heat flux sensing that is applicable to various surfaces.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: kirigami, heat flux sensor, anomalous Nernst effect

Date published: 2026-05-01

Publisher: IOP Publishing

Journal:

• Applied Physics Express (ISSN: 18820786) vol. 19 issue. 5 053001

Funding:

• Japan Society for the Promotion of Science 25K08463
• Exploratory Research for Advanced Technology JPMJER2201

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.35848/1882-0786/ae62c7

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Updated at: 2026-07-06 10:54:55 +0900

Published on MDR: 2026-07-06 12:30:06 +0900