Picosecond spin Seebeck effect

Abstract

We report time-resolved magneto-optic Kerr effect measurements of the longitudinal spin Seebeck effect driven by an interfacial temperature difference between itinerant electrons and magnons. The measured time-evolution of spin accumulation induced by laser-excitation indicates transfer of angular momentum across Au/Y${}_3$Fe${}_5$O${}_{12}$ and Cu/Y${}_3$Fe${}_5$O${}_{12}$ interfaces on a picosecond time-scale. The product of spin-mixing conductance and interfacial spin Seebeck coefficient determined is of the order of $10^8$ A m${}^{-2}$ K${}^{-1}$.

16 pages, 4 figures, 1 table

References in corpus (26)

• Spin Caloritronics
• Theory of magnon-driven spin Seebeck effect
• Theory of the Spin Seebeck Effect
• Antiferromagnetic spin Seebeck Effect
• Experimental test of the spin mixing interface conductivity concept
• Magnon spin transport driven by the magnon chemical potential in a magnetic insulator
• Thermal generation of spin current in an antiferromagnet
• Observation of the spin Peltier effect
• Magnon, phonon and electron temperature profiles and the spin Seebeck effect in magnetic insulator/normal metal hybrid structures
• Critical suppression of spin Seebeck effect by magnetic fields
• Spin convertance at magnetic interfaces
• Landau-Lifshitz theory of the longitudinal spin Seebeck effect
• Electronic Pumping of Quasiequilibrium Bose-Einstein Condensed Magnons
• The effect of the magnon dispersion on the longitudinal spin Seebeck effect in yttrium iron garnets (YIG)
• Thermally driven spin and charge currents in thin NiFe2O4/Pt films
• Origin of the thickness-dependent low-temperature enhancement of spin Seebeck effect in YIG films
• Longitudinal spin Seebeck effect contribution in transverse spin Seebeck effect experiments in Pt/YIG and Pt/NFO
• Observation of huge thermal spin currents in magnetic multilayers
• Interfacial Spin and Heat Transfer between Metals and Magnetic Insulators
• Propagation of Thermally Induced Magnonic Spin Currents
• Sub-microsecond fast temporal evolution of the spin Seebeck effect
• Spin Seebeck Power Conversion
• Time resolved spin Seebeck effect experiments
• Anisotropic magneto-thermal transport and Spin-Seebeck effect
• Spin Seebeck effect at microwave frequencies
• Evidence for a Magnetic Seebeck effect

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