Spintronic thermal management

Abstract

In spin caloritronics, a branch of spintronics, the spin degree of freedom is exploited for thermoelectric conversion and thermal transport. Since the inception of spin caloritronics, many experimental and theoretical studies have focused on clarifying the fundamental physics of the heat-to-spin and heat-to-charge current conversion phenomena in magnetic materials and magnetic hybrid structures, such as the spin Seebeck and anomalous Nernst effects. While research on these phenomena is progressing, there are also many spin-caloritronic phenomena that output heat currents. The observations of such phenomena have recently been accomplished through cutting-edge heat detection techniques. The recent developments in spin caloritronics have revealed that the generation, conversion, and transport of heat can be actively controlled by spins and/or magnetism. In this review article, we propose a new concept called spintronic thermal management. With proof-of-concept demonstrations, we introduce the basic principles, behaviors, measurement methods, and heat control functionalities of spin-caloritronic phenomena and discuss potential applications of spintronic thermal management.

38 pages, 22 figures, 1 table

References in corpus (19)

• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Observation of the Magnon Hall Effect
• All-optical control of ferromagnetic thin films and nanostructures
• Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect
• Thermal Spin-Transfer Torques in Magnetoelectronic Devices
• Thermal imaging of spin Peltier effect
• Observation of spin current in quantum spin liquid
• Transverse thermoelectric generation using magnetic materials
• Magnon-drag thermopile
• Observation of anomalous Ettingshausen effect and large transverse thermoelectric conductivity in permanent magnets
• Above-room-temperature giant thermal conductivity switching in spintronic multilayer
• High-temperature dependence of anomalous Ettingshausen effect in SmCo${}_5$-type permanent magnets
• High-throughput direct measurement of magnetocaloric effect based on lock-in thermography technique
• Combinatorial tuning of electronic structure and thermoelectric properties in Co${}_2$MnAl${}_{1-x}$Si${}_x$ Weyl semimetals
• Anisotropic Hanle lineshape via anisotropic magnetothermoelectric phenomena
• 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
• Thermopile based on anisotropic magneto-Peltier effect