Theory of magnon-driven spin Seebeck effect

Abstract

The spin Seebeck effect is a spin-motive force generated by a temperature gradient in a ferromagnet that can be detected via normal metal contacts through the inverse spin Hall effect [K. Uchida {\it et al.}, Nature {\bf 455}, 778-781 (2008)]. We explain this effect by spin pumping at the contact that is proportional to the spin-mixing conductance of the interface, the inverse of a temperature-dependent magnetic coherence volume, and the difference between the magnon temperature in the ferromagnet and the electron temperature in the normal metal [D. J. Sanders and D. Walton, Phys. Rev. B {\bf 15}, 1489 (1977)].

10 pages, 3 figures, 2 tables. This version is NOT the published PRB but a version with an erratum

References in corpus (3)

• Direct electronic measurement of the spin Hall effect
• Non-collinear Magnetoelectronics
• Charge pumping and the colored thermal voltage noise in spin valves

Cited by in corpus (3)

• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Spin caloritronics in magnetic tunnel junctions: Ab initio studies