Theory of spin Peltier effect

Abstract

A microscopic theory of the spin Peltier effect in a bilayer structure comprising a paramagnetic metal (PM) and a ferromagnetic insulator (FI) based on the nonequilibrium Green's function method is presented. Spin current and heat current driven by temperature gradient and spin accumulation are formulated as functions of spin susceptibilities in the PM and the FI, and are summarized by Onsager's reciprocal relations. By using the current formulae, we estimate heat generation and absorption at the interface driven by the heat-current injection mediated by spins from PM into FI.

4 pages, 1 figure

References in corpus (6)

• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Theory of magnon-driven spin Seebeck effect
• Thermoelectric Effects in Magnetic Nanostructures
• Thermal imaging of spin Peltier effect
• Thermoelectric spin transfer in textured magnets

Cited by in corpus (9)

• Spin current noise of the spin Seebeck effect and spin pumping
• Microscopic theory of spin transport at the interface between the superconductor and a ferromagnetic insulator
• Green's function formalism for spin transport in metal-insulator-metal heterostructures
• Magnon polarons in the spin Peltier effect
• Magnetic-field-induced suppression of spin Peltier effect in Pt/${\mathrm{Y}}_3\mathrm{F}{\mathrm{e}}_5{\mathrm{O}}_{12}$ system at room temperature
• Transient response of spin Peltier effect revealed by lock-in thermoreflectance measurement
• Ferromagnetic resonance modulation in $d$-wave superconductor/ferromagnetic insulator bilayer systems
• Asymmetric quantum shot noise in magnon transport
• Voltage-Controlled Magnonic Spin Tunneling Junction