High-temperature dependence of anomalous Ettingshausen effect in SmCo5-type permanent magnets

Asuka Miura, Keisuke Masuda, Takamasa Hirai, Ryo Iguchi, Takeshi Seki, Yoshio Miura, Hiroki Tsuchiura, Koki Takanashi, Ken Ichi Uchida

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4 Citations (Scopus)

Abstract

The anomalous Ettingshausen effect (AEE) in SmCo5-type permanent magnets has been investigated in the high-temperature range from room temperature to around 600 K. The anomalous Ettingshausen coefficient of the SmCo5 and (SmGd)Co5 magnets monotonically increases with increasing the temperature and shows a similar temperature dependence, while the coefficient of SmCo5 is slightly larger than that of (SmGd)Co5 at high temperatures. The dimensionless figure of merit for the AEE in SmCo5 at high temperatures is much greater than the previous record obtained for the anomalous Nernst effect. The observed high-temperature behavior of the AEE is discussed based on the first-principles calculations of transverse transport coefficients.

Original languageEnglish
Article number082408
JournalApplied Physics Letters
Volume117
Issue number8
DOIs
Publication statusPublished - 2020 Aug 24

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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