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 language | English |
|---|---|
| Journal | Journal of Applied Physics |
| Volume | 107 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2010 May 1 |
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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 journal › Article
}
TY - JOUR
T1 - Electric detection of the spin-Seebeck effect in ferromagnetic metals (invited)
AU - Uchida, K.
AU - Ota, T.
AU - Harii, K.
AU - Ando, Kazuya
AU - Nakayama, H.
AU - Saitoh, E.
PY - 2010/5/1
Y1 - 2010/5/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84991348927&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84991348927&partnerID=8YFLogxK
U2 - 10.1063/1.3357413
DO - 10.1063/1.3357413
M3 - Article
AN - SCOPUS:84991348927
VL - 107
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 9
ER -