Electric detection of the spin-Seebeck effect in ferromagnetic metals (invited)

K. Uchida, T. Ota, K. Harii, Kazuya Ando, H. Nakayama, E. Saitoh

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The spin-Seebeck effect (SSE) converts a temperature gradient into spin voltage, driving force for nonequilibrium spin currents, in a ferromagnetic metal. In this study, the SSE in ferromagnetic [formula omitted], Ni, and Fe films has been investigated by means of the inverse spin-Hall effect (ISHE) in Pt films at room temperature. The ISHE allows us to detect the SSE signals as electric voltage separated from extrinsic thermoelectric effects. The experimental results show that the sign of the thermally induced spin voltage due to the SSE is reversed between the higher- and lower-temperature ends of the ferromagnets. We also measured the spatial distribution and the sample-width dependence of the ISHE voltage induced by the SSE.

Original languageEnglish
JournalJournal of Applied Physics
Volume107
Issue number9
DOIs
Publication statusPublished - 2010 May 1

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Seebeck effect
metals
Hall effect
electric potential
temperature gradients
spatial distribution

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Electric detection of the spin-Seebeck effect in ferromagnetic metals (invited). / Uchida, K.; Ota, T.; Harii, K.; Ando, Kazuya; Nakayama, H.; Saitoh, E.

In: Journal of Applied Physics, Vol. 107, No. 9, 01.05.2010.

Research output: Contribution to journalArticle

Uchida, K. ; Ota, T. ; Harii, K. ; Ando, Kazuya ; Nakayama, H. ; Saitoh, E. / Electric detection of the spin-Seebeck effect in ferromagnetic metals (invited). In: Journal of Applied Physics. 2010 ; Vol. 107, No. 9.
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