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.

11 pages, 4 figures

References in corpus (7)

• Spin Seebeck insulator
• Thermal imaging of spin Peltier effect
• Quantitative Temperature Dependence of Longitudinal Spin Seebeck Effect at High Temperatures
• Spintronic thermal management
• Thermally Driven Long Range Magnon Spin Currents in Yttrium Iron Garnet due to Intrinsic Spin Seebeck 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

Cited by in corpus (1)

• Anomalous Ettingshausen effect in iron-carbon alloys