Nonequilibrium thermodynamics of the spin Seebeck and spin Peltier effects

Basso, Vittorio; Ferraro, Elena; Magni, Alessandro; Sola, Alessandro; Kuepferling, Michaela; Pasquale, Massimo

doi:10.1103/PhysRevB.93.184421

We study the problem of magnetization and heat currents and their associated thermodynamic forces in a magnetic system by focusing on the magnetization transport in ferromagnetic insulators like YIG. The resulting theory is applied to the longitudinal spin Seebeck and spin Peltier effects. By focusing on the specific geometry with one Y3Fe5O12 (YIG) layer and one Pt layer, we obtain the optimal conditions for generating large magnetization currents into Pt or large temperature effects in YIG. The theoretical predictions are compared with experiments from the literature permitting to derive the values of the thermomagnetic coefficients of YIG: the magnetization diffusion length lM ∼0.4 μm and the absolute thermomagnetic power coefficient εM∼10−2 TK−1.

Nonequilibrium thermodynamics of the spin Seebeck and spin Peltier effects / Basso, Vittorio; Ferraro, Elena; Magni, Alessandro; Sola, Alessandro; Kuepferling, Michaela; Pasquale, Massimo. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 93(2016), p. 184421.

Titolo:	Nonequilibrium thermodynamics of the spin Seebeck and spin Peltier effects
Autori:	BASSO, VITTORIO Ferraro, Elena MAGNI, ALESSANDRO SOLA, ALESSANDRO KUEPFERLING, MICHAELA PASQUALE, MASSIMO mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2016
Rivista:	PHYSICAL REVIEW. B
Citazione:	Nonequilibrium thermodynamics of the spin Seebeck and spin Peltier effects / Basso, Vittorio; Ferraro, Elena; Magni, Alessandro; Sola, Alessandro; Kuepferling, Michaela; Pasquale, Massimo. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 93(2016), p. 184421.
Handle:	http://hdl.handle.net/11696/54492
Appare nelle tipologie:	1.1 Articolo in rivista

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