Spin Peltier effect and its length scale in Pt/YIG system at high temperatures

Abstract

The temperature and yttrium-iron-garnet (YIG) thickness dependences of the spin Peltier effect (SPE) have been investigated using a Pt/YIG junction system at temperatures ranging from room temperature to the Curie temperature of YIG by the lock-in thermography method. By analyzing the YIG thickness dependence using an exponential decay model, the characteristic length of SPE in YIG is estimated to be 0.9 $\mu$m near room temperature and almost constant even near the Curie temperature. The high-temperature behavior of SPE is clearly different from that of the spin Seebeck effect, providing a clue for microscopically understanding the reciprocal relation between them.

arXiv comment11 pages, 4 figures

References in corpus (22)

• Spin Caloritronics
• Spin Seebeck insulator
• Long distance transport of magnon spin information in a magnetic insulator at room temperature
• Thermoelectric generation based on spin Seebeck effects
• Observation of the spin Peltier effect
• Critical suppression of spin Seebeck effect by magnetic fields
• Determination of the origin of the spin Seebeck effect - bulk vs. interface effects
• Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy
• Thermal imaging of spin Peltier effect
• The effect of the magnon dispersion on the longitudinal spin Seebeck effect in yttrium iron garnets (YIG)
• Long range pure magnon spin diffusion observed in a non-local spin-Seebeck geometry
• Origin of the thickness-dependent low-temperature enhancement of spin Seebeck effect in YIG films
• Quantitative Temperature Dependence of Longitudinal Spin Seebeck Effect at High Temperatures
• Concomitant enhancement of longitudinal spin Seebeck effect with thermal conductivity
• Thermographic measurements of the spin Peltier effect in metal/yttrium-iron-garnet junction systems
• Spintronic thermal management
• Thermally Driven Long Range Magnon Spin Currents in Yttrium Iron Garnet due to Intrinsic Spin Seebeck Effect
• 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
• Transient response of spin Peltier effect revealed by lock-in thermoreflectance measurement
• Microscopic origin of subthermal magnons and the spin Seebeck effect
• Thickness dependence of spin Peltier effect visualized by thermal imaging technique

Cited by in corpus (1)

• Anomalous Ettingshausen effect in iron-carbon alloys