All-oxide spin Seebeck effects

Abstract

We report the observation of longitudinal spin Seebeck effects (LSSE) in an all-oxide bilayer system comprising an IrO${}_2$ film and an Y${}_3$Fe${}_5$O${}_{12}$ film. Spin currents generated by a temperature gradient across the IrO${}_2$/Y${}_3$Fe${}_5$O${}_{12}$ interface were detected as electric voltage via the inverse spin Hall effect in the conductive IrO${}_2$ layer. This electric voltage is proportional to the magnitude of the temperature gradient and its magnetic field dependence is well consistent with the characteristic of the LSSE. This demonstration may lead to the realization of low-cost, stable, and transparent spin-current-driven thermoelectric devices.

References in corpus (4)

• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect
• Quantitative Temperature Dependence of Longitudinal Spin Seebeck Effect at High Temperatures

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