Temperature dependence of the interface spin Seebeck effect

Abstract

We performed temperature-dependent optical pump - THz emission measurements in Y3Fe5O12 (YIG)|Pt from 5 K to room temperature in the presence of an externally applied magnetic field. We study the temperature dependence of the spin Seebeck effect and observe a continuous increase as temperature is decreased, opposite to what is observed in electrical measurements where the spin Seebeck effect is suppressed as 0K is approached. By quantitatively analysing the different contributions we isolate the temperature dependence of the spin-mixing conductance and observe features that are correlated to the bands of magnon spectrum in YIG.

arXiv comment11 pages, 9 figures

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Cited by in corpus (5)

• Spintronic Sources of Ultrashort Terahertz Electromagnetic Pulses
• Transition of laser-induced terahertz spin currents from torque- to conduction-electron-mediated transport
• The importance of the interface for picosecond spin pumping in antiferromagnet-heavy metal heterostructures
• Signature of BKT-like spin transport in a quasi-2D antiferromagnet BaNi${}_2$V${}_2$O${}_8$
• Terahertz time-domain signatures of the inverse Edelstein effect in topological-insulator|ferromagnet heterostructures