Thermal imaging of spin Peltier effect

Abstract

When a charge current is applied to a junction comprising two different conductors, its temperature increases or decreases depending on the direction of the charge current. This phenomenon is called the Peltier effect, which is used in solid-state heat pumps and temperature controllers in electronics. Recently, in spintronics, a spin counterpart of the Peltier effect was observed. The "spin Peltier effect" modulates the temperature of a magnetic junction depending on the direction of a spin current. Here we report thermal imaging of the spin Peltier effect; using active thermography technique, we visualize the temperature modulation induced by a spin current injected into a magnetic insulator from an adjacent metal. The thermal images reveal characteristic distribution of spin-current-induced heat sources, resulting in the temperature change confined only in the vicinity of the metal/insulator interface. The finding of this anomalous temperature distribution allows us to estimate the actual magnitude of the temperature modulation induced by the spin Peltier effect, which is found to be more than one order of magnitude greater than that previously believed.

arXiv comment17 pages, 7 figures, 1 table

References in corpus (14)

• Spintronics: Fundamentals and applications
• Spin Caloritronics
• Direct electronic measurement of the spin Hall effect
• Spin transfer torque devices utilizing the giant spin Hall effect of tungsten
• Nonlocal magnetization dynamics in ferromagnetic heterostructures
• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Theory of magnon-driven spin Seebeck effect
• Theory of the Spin Seebeck Effect
• Thermally driven spin injection from a ferromagnet into a non-magnetic metal
• Observation of the spin Peltier effect
• Magnon, phonon and electron temperature profiles and the spin Seebeck effect in magnetic insulator/normal metal hybrid structures
• Magnon-phonon coupling unmasked: a direct measurement of magnon temperature
• Non-equilibrium thermodynamics of the spin Seebeck and spin Peltier effects

Cited by in corpus (54)

• Diamond quantum thermometry: From foundations to applications
• 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
• Theory of spin Peltier effect
• Spin and spin current -- From fundamentals to recent progress
• Spin Seebeck Effect: Sensitive Probe for Elementary Excitation, Spin Correlation, Transport, Magnetic Order, and Domains in Solids
• All-optical cryogenic thermometry based on NV centers in nanodiamonds
• Sm-Co-based amorphous alloy films for zero-field operation of transverse thermoelectric generation
• High-temperature dependence of anomalous Ettingshausen effect in SmCo${}_5$-type permanent magnets
• Thermographic measurements of the spin Peltier effect in metal/yttrium-iron-garnet junction systems
• Excitations of the ferroelectric order
• Spintronic thermal management
• Systematic Investigation of Anisotropic Magneto-Peltier Effect and Anomalous Ettingshausen Effect in Ni Thin Films
• A review of modelling in ferrimagnetic spintronics
• High-throughput direct measurement of magnetocaloric effect based on lock-in thermography technique
• Spin-mediated charge-to-heat current conversion phenomena in ferromagnetic binary alloys
• Phase-transition-induced giant Thomson effect for thermoelectric cooling
• Combinatorial tuning of electronic structure and thermoelectric properties in Co${}_2$MnAl${}_{1-x}$Si${}_x$ Weyl semimetals
• Thermographic measurements of spin-current-induced temperature modulation in metallic bilayers
• Hybridizing anomalous Nernst effect in artificially tilted multilayer based on magnetic topological material
• Magnon polarons in the spin Peltier effect
• Fundamentals and advances in transverse thermoelectrics
• Experimental proof of the reciprocal relation between spin Peltier and spin Seebeck effects in a bulk YIG/Pt bilayer
• 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
• First-principles study of the anisotropic magneto-Peltier effect
• Probing length-scale separation of thermal and spin currents by nanostructuring YIG
• The Ferroelectric Point Contact
• Transient response of spin Peltier effect revealed by lock-in thermoreflectance measurement
• Anomalous Ettingshausen effect in iron-carbon alloys
• Thermal effects in spintronic materials and devices: an experimentalist's guide
• Giant localised spin-Peltier effect due to ultrafast domainwalls motion in antiferromagnetic metals
• Dissipationless Spin Current Generation in Kitaev's Chiral Spin Liquid
• Spin caloric effects in antiferromagnets assisted by an external spin current
• Direct measurement of electrocaloric effect based on multi-harmonic lock-in thermography
• Optically induced electron spin currents in the Kretschmann configuration
• Thickness dependence of spin Peltier effect visualized by thermal imaging technique
• Local heat emission due to unidirectional spin-wave heat conveyer effect observed by lock-in thermography
• Thermopile based on anisotropic magneto-Peltier effect
• Tunable Spin Seebeck Diode with Magnonic Spin Tunneling Junction
• Spin Seebeck Effect of Triangular-lattice Spin Supersolid
• Quantitative noncontact measurement of thermal Hall angle and transverse thermal conductivity by lock-in thermography
• High-throughput imaging measurements of thermoelectric figure of merit
• Spin Peltier effect and its length scale in Pt/YIG system at high temperatures
• High-throughput development of flexible amorphous materials showing large anomalous Nernst effect via automatic annealing and thermoelectric imaging
• Graph theoretic analysis of three-terminal quantum dot thermocouples: Onsager relations and spin-thermoelectric effects
• 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${}_{12}$
• Thermal instability in a ferrimagnetic resonator strongly coupled to a loop-gap microwave cavity
• Designing flexible hard magnetic materials for zero-magnetic-field operation of the anomalous Nernst effect
• Cryogenic spin Peltier effect detected by a RuO${}_2$-AlO${}_x$ on-chip microthermometer
• Frequency-dependent Phonon-mediated Unidirectional Magnetoresistance in a Metal on an Insulator with Highly Nonequilibrium Magnons
• Spin caloritronics: History and future prospects of experiments
• Magnon-mediated electric current drag and nonlocal spin-Peltier effect in the ac regime
• Thermomagnetic anomalies in quantum magnon transport caused by tunable junction geometries in cold atomic systems
• Progress of microscopic thermoelectric effects studied by micro-and nano-thermometric techniques