Longitudinal spin-Seebeck effect in sintered polycrystalline (Mn,Zn) Fe2 O4

Ken Ichi Uchida, Tatsumi Nonaka, Takeru Ota, Eiji Saitoh

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135 Citations (Scopus)


This paper reports that the longitudinal spin-Seebeck effect appears even in a sintered polycrystalline Mn-Zn ferrite [(Mn,Zn) Fe2 O 4] slab. The effect drives a spin current flowing across an interface between the (Mn,Zn) Fe2 O4 slab and an attached Pt film along a temperature gradient and it generates electric voltage via the inverse spin-Hall effect in the Pt film. Since the observed phenomenon enables thermal generation of electric voltage from commonly used polycrystalline insulators, it can be used as a versatile and low-cost thermoelectric generator.

Original languageEnglish
Article number262504
JournalApplied Physics Letters
Issue number26
Publication statusPublished - 2010 Dec 27


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