Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect

Abstract

This letter provides evidence for intrinsic longitudinal spin Seebeck effects (LSSEs) that are free from the anomalous Nernst effect (ANE) caused by an extrinsic proximity effect. We report the observation of LSSEs in Au/Y3Fe5O12 (YIG) and Pt/Cu/YIG systems, showing that LSSE appears even when the mechanism of the proximity ANE is clearly removed. In the conventional Pt/YIG structure, furthermore, we separate the LSSE from the ANE by comparing the voltages in different magnetization and temperature-gradient configurations; the ANE contamination was found to be negligibly small even in the Pt/YIG structure.

5 pages, 5 figures

References in corpus (4)

• Direct electronic measurement of the spin Hall effect
• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Theory of magnon-driven spin Seebeck effect

Cited by in corpus (18)

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• Magnon-phonon interactions in magnetic insulators
• Quantitative Temperature Dependence of Longitudinal Spin Seebeck Effect at High Temperatures
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• Anomalous Nernst and Hall effects in magnetized platinum and palladium
• Spin current generation from sputtered Y3Fe5O12 films
• Unambiguous separation of the inverse spin Hall and anomalous Nernst Effects within a ferromagnetic metal using the spin Seebeck effect
• Spin Seebeck devices using local on-chip heating
• Microwave-induced spin currents in ferromagnetic-insulator|normal-metal bilayer system
• Quantitative separation of the anisotropic magnetothermopower and planar Nernst effect by the rotation of an in-plane thermal gradient
• How to control Spin-Seebeck current in a metal-quantum dot-magnetic insulator junction
• Heat-driven spin transport in a ferromagnetic metal
• Detection of induced paramagnetic moments in Pt on Y${}_3$Fe${}_5$O${}_{12}$ via x-ray magnetic circular dichroism
• Spin Hall noise
• Spin Seebeck effect and phonon energy transfer in heterostructures containing layers of a normal metal and a ferromagnetic insulator
• Magnon Hall effect and anisotropic thermal transport in NiFe and YIG ferromagnets
• Thermoelectric Signal Enhancement by Reconciling the Spin Seebeck and Anomalous Nernst Effects in Ferromagnet/Non-magnet Multilayers
• Anomalous and Planar Nernst effects in thin-films of half-metallic ferromagnet La2/3Sr1/3MnO3