Article Zero-magnetic-field operation of ordinary-Nernst-effect-based transverse thermoelectric module using embedded permanent magnets

Masayuki Murata ; Takamasa Hirai SAMURAI ORCID (National Institute for Materials Science) ; Takeshi Seki ORCID ; Ken-ichi Uchida SAMURAI ORCID (National Institute for Materials Science)

Murata_manuscript_Nernst_r1.pdf
Download file (1.01 MB)
Download as zip (995 KB)
Collection

Citation
Masayuki Murata, Takamasa Hirai, Takeshi Seki, Ken-ichi Uchida. Zero-magnetic-field operation of ordinary-Nernst-effect-based transverse thermoelectric module using embedded permanent magnets. APPLIED PHYSICS LETTERS. 2024, 124 (19), 193901. https://doi.org/10.1063/5.0202818
SAMURAI

Description:

(abstract)

The ordinary Nernst effect enables large transverse thermoelectric conversion in semimetals but its operation requires the application of an external magnetic field. In this study, we propose a transverse thermoelectric conversion module structure with embedded permanent magnets and demonstrate thermoelectric power generation by the ordinary Nernst effect in the absence of an external magnetic field. In our prototype module comprising alternately stacked Bi88Sb12 slabs and Nd2Fe14B-type permanent magnets, the stray magnetic field generated by the remanent magnetization of the Nd2Fe14B-type magnets is always applied to the Bi88Sb12 slabs, and a power of 13.1 uW is generated due to the ordinary Nernst effect at a temperature difference of 120 K and average temperature of 260 K at zero external field. This thermoelectric module concept will contribute to the further development of transverse thermoelectric conversion technologies utilizing permanent magnets.

Rights:

  • In Copyright

    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 Masayuki Murata et al., Appl. Phys. Lett. 124, 193901 (2024) and may be found at https://doi.org/10.1063/5.0202818.

Keyword: transverse thermoelectric conversion, ordinary Nernst effect, permanent magnet

Date published: 2024-05-06

Publisher: AIP Publishing

Journal:

  • APPLIED PHYSICS LETTERS (ISSN: 00036951) vol. 124 issue. 19 193901

Funding:

  • Core Research for Evolutional Science and Technology JPMJCR17I1
  • Exploratory Research for Advanced Technology JPMJER2201
  • New Energy and Industrial Technology Development Organization P14004
  • Japan Society for the Promotion of Science 22K04232
  • ACT-X JPMJAX21KI

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4509

First published URL: https://doi.org/10.1063/5.0202818

Related item:

Other identifier(s):

Contact agent:

Updated at: 2024-05-15 16:30:15 +0900

Published on MDR: 2024-05-15 16:30:16 +0900

Filename Size
Filename Murata_manuscript_Nernst_r1.pdf (Thumbnail)
application/pdf 		Size 1.01 MB Detail