Temperature dependence of anisotropic magneto-Seebeck effect in NiPt alloys

Takamasa Hirai, Rajkumar Modak, Asuka Miura, Takeshi Seki, Koki Takanashi, Ken Ichi Uchida

Research output: Contribution to journalArticlepeer-review

Abstract

This letter reports systematic measurements of the anisotropic magneto-Seebeck effect (AMSE) of ferromagnetic Ni100-x Pt x alloys with different Pt concentration ratios x. By simultaneously measuring an applied temperature difference and generated thermopower at the same positions, the Seebeck coefficient under a magnetic field is quantified with high reliability at the temperatures ranging from 300 to 550 K. The AMSE of the alloys is maximized at around x = 5 at% in the high temperature range and disappears at the temperatures lower than the Curie temperature. The systematic dataset and experimental techniques established here will invigorate spin caloritronics studies.

Original languageEnglish
Article number073001
JournalApplied Physics Express
Volume14
Issue number7
DOIs
Publication statusPublished - 2021 Jul

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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