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Wednesday, March 21 @ 12pm, ETSE Sala de Graus, Prof. Hiroto Adachi from the Advanced Science Research Center, Japan Atomic Energy Agency.
I focus on the so-called spin-Seebeck effect, which enables the extraordinarily long range
(centimeter scale) thermal spin injection from a ferromagnet into an attached nonmagnetic
metal. Recent theoretical and experimental efforts have clarified that the phonon degrees of
freedom are of crucial importance in the spin-Seebeck effect.
Followed by a brief introduction to the spin-Seebeck effect, I will discuss the phonon-drag
contribution to the spin-Seebeck effect, which simultaneously explains the local nature of
the spin-Seebeck effect (scratch test experiment) as well as the low-temperature
enhancement of the signal.