Experimental proof of the reciprocal relation between spin Peltier and spin Seebeck effects in a bulk YIG/Pt bilayer

Abstract

We verify for the first time the reciprocal relation between the spin Peltier and spin Seebeck effects in a bulk YIG/Pt bilayer. Both experiments are performed on the same YIG/Pt device by a setup able to accurately determine heat currents and to separate the spin Peltier heat from the Joule heat background. The sample-specific value for the characteristics of both effects measured on the present YIG/Pt bilayer is $(6.2 \pm 0.4)\times 10^{-3} \,\, \mbox{KA$^{-1}$}$. In the paper we also discuss the relation of both effects with the intrinsic and extrinsic parameters of YIG and Pt and we envisage possible strategies to optimize spin Peltier refrigeration.

arXiv comment11 pages, 3 figures

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• Spin and spin current -- From fundamentals to recent progress
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• Spin Seebeck and Spin Nernst Effects of Magnons in Noncollinear Antiferromagnetic Insulators
• Magnon polarons in the spin Peltier effect
• Transient response of spin Peltier effect revealed by lock-in thermoreflectance measurement
• Thickness dependence of spin Peltier effect visualized by thermal imaging technique
• Local spin Seebeck imaging with scanning thermal probe
• Time Reversal Symmetry for Classical, Nonrelativistic Quantum and Spin Systems in Presence of Magnetic Fields
• Spin Peltier effect and its length scale in Pt/YIG system at high temperatures
• Deposition temperature dependence of thermo-spin and magneto-thermoelectric conversion in Co${}_2$MnGa films on Y${}_3$Fe${}_5$O${}_{12}$ and Gd${}_3$Ga${}_5$O${}_{12}$
• Cryogenic spin Peltier effect detected by a RuO${}_2$-AlO${}_x$ on-chip microthermometer
• Temperature dependence of the mean magnon collision time in a spin Seebeck device
• Magnon-mediated electric current drag and nonlocal spin-Peltier effect in the ac regime