Spin caloritronics: History and future prospects of experiments

Abstract

Since the beginning of the 21st century, novel energy conversion and control principles utilizing the spin degree of freedom have been discovered in the field of spin caloritronics, which integrates spintronics with thermal transport and thermoelectric properties. In this article, we review the history of development of spin caloritronics and experimental studies on various transport phenomena caused by heat-charge-spin interactions. We then discuss future prospects in spin caloritronics from the viewpoints of measurement techniques, physics, materials science, and engineering applications. Spin caloritronics is now at a turning point, transitioning from fundamental condensed matter physics to materials science, and further development is anticipated in both fundamental and applied research.

26 pages, 7 figures

References in corpus (42)

• Spin Seebeck insulator
• Majorana quantization and half-integer thermal quantum Hall effect in a Kitaev spin liquid
• Large anomalous Nernst effect at room temperature in a chiral antiferromagnet
• Observation of the Magnon Hall Effect
• Giant anomalous Nernst effect and quantum-critical scaling in a ferromagnetic semimetal
• Thermally driven spin injection from a ferromagnet into a non-magnetic metal
• Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect
• Thermal Spin-Transfer Torques in Magnetoelectronic Devices
• Thermal generation of spin current in an antiferromagnet
• Observation of the spin Peltier effect
• Cooling and heating with electron spins: Observation of the spin Peltier effect
• Magnon Polarons in the Spin Seebeck Effect
• Observation of the spin Nernst effect
• Thermal imaging of spin Peltier effect
• Observation of spin current in quantum spin liquid
• The Spin Nernst effect in Tungsten
• Transverse thermoelectric generation using magnetic materials
• Thermoelectrics: from Longitudinal to Transverse
• Observation of huge thermal spin currents in magnetic multilayers
• Observation of anomalous Ettingshausen effect and large transverse thermoelectric conductivity in permanent magnets
• Visualization of Anomalous Ettingshausen Effect in a Ferromagnetic Film: Direct Evidence of Different Symmetry from Spin Peltier Effect
• Spin heat accumulation and spin-dependent temperatures in nanopillar spin valves
• Observation of transverse spin Nernst magnetoresistance induced by thermal spin current in ferromagnet/non-magnet bilayers
• Above-room-temperature giant thermal conductivity switching in spintronic multilayer
• Observation of spin Seebeck contribution to the transverse thermopower in Ni-Pt and MnBi-Au bulk nanocomposites
• Observation of nuclear-spin Seebeck effect
• Theory of Transport in Ferroelectric Capacitors
• Hybridizing anomalous Nernst effect in artificially tilted multilayer based on magnetic topological material
• Fundamentals and advances in transverse thermoelectrics
• Permanent-magnet-based transverse thermoelectric generator with high fill factor driven by anomalous Nernst effect
• Multifunctional composite magnet realizing record-high transverse thermoelectric generation
• Phenomenological analysis of transverse thermoelectric generation and cooling performance in magnetic/thermoelectric hybrid systems
• Triplon current generation in solids
• Transient response of spin Peltier effect revealed by lock-in thermoreflectance measurement
• Thermal generation of spin current in a helimagnetic multiferroic hexaferrite
• Imaging the Ettingshausen effect and cryogenic thermoelectric cooling in a van der Waals semimetal
• Direct measurement of electrocaloric effect based on multi-harmonic lock-in thermography
• Local heat emission due to unidirectional spin-wave heat conveyer effect observed by lock-in thermography
• Ginzburg-Landau action and polarization current in an excitonic insulator model of electronic ferroelectricity
• Nonlinear Seebeck effect in Ni${}_{81}$Fe${}_{19}$|Pt at room temperature
• Quantitative noncontact measurement of thermal Hall angle and transverse thermal conductivity by lock-in thermography
• Non-equilibrium Magnon Engineering Enabling Significant Thermal Transport Modulation