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Magnon, phonon, and electron temperature profiles and the spin Seebeck effect in magnetic insulator/normal metal hybrid structures

Year: 2013
Type: article
Abstract: We calculate the phonon, electron, and magnon temperature profiles in yttrium iron garnet/platinum bilayers by diffusive theory with appropriate boundary conditions, in particular taking into account interfacial thermal resistances. Our calculations show that in thin film hybrids, the interface magnetic heat conductance qualitatively affects the magnon temperature. Based on published material parameters we assess the degree of nonequilibrium at the yttrium iron garnet/platinum interface. The magnitude of the spin Seebeck effect derived from this approach compares well with experimental results for the longitudinal spin Seebeck effect. Additionally, we address the temperature profiles in the transverse spin Seebeck effect.
DOI: 10.1103/physrevb.88.094410
Authors: Michael Schreier, Akashdeep Kamra, Mathias Weiler, Jiang Xiao, Gerrit E. W. Bauer, Rudolf Gross, Sebastian T. B. Goennenwein
Institutions: Bavarian Academy of Sciences and Humanities, Walther Meissner Institute, Delft University of Technology, Fudan University, State Key Laboratory of Surface Physics, Tohoku University, Institute for Materials Research, Tohoku University, Technical University of Munich
Language: English
Open Access status: bronze
Awards: Spin Mechanics, G2886820969, G3615029524, G4925076582, G8046710844, Spin Caloric Transport
OpenAlex ID: W2098436004
FWCI: 11.54
Cites: 80
Cited by: 208
Related to: 10