Thermoelectric performance of spin Seebeck effect in Fe3O4/Pt-based thin film heterostructures

Abstract

We report a systematic study on the thermoelectric performance of spin Seebeck devices based on Fe3O4/Pt junction systems. We explore two types of device geometries: a spin Hall thermopile and spin Seebeck multilayer structures. The spin Hall thermopile increases the sensitivity of the spin Seebeck effect, while the increase in the sample internal resistance has a detrimental effect on the output power. We found that the spin Seebeck multilayers can overcome this limitation since the multilayers exhibit the enhancement of the thermoelectric voltage and the reduction of the internal resistance simultaneously, therefore resulting in significant power enhancement. This result demonstrates that the multilayer structures are useful for improving the thermoelectric performance of the spin Seebeck effect.

This paper has been accepted in APL Materials, 15 pages, 4 figures

References in corpus (29)

• Spintronics: Fundamentals and applications
• Spin torque switching with the giant spin Hall effect of tantalum
• Spin Caloritronics
• Direct electronic measurement of the spin Hall effect
• Spin transfer torque devices utilizing the giant spin Hall effect of tungsten
• Spin Seebeck insulator
• Room Temperature Reversible Spin Hall Effect
• 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
• Giant Spin Hall Effect Induced by Skew Scattering from Bismuth Impurities inside Thin Film CuBi Alloys
• Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet
• Linear-response theory of spin Seebeck effect in ferromagnetic insulators
• Observation of the spin Peltier effect
• Cooling and heating with electron spins: 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
• Observation of the spin Seebeck effect in epitaxial Fe3O4 thin films
• Spin convertance at magnetic interfaces
• Phonon driven spin distribution due to the spin-Seebeck effect
• Landau-Lifshitz theory of the longitudinal spin Seebeck effect
• The effect of the magnon dispersion on the longitudinal spin Seebeck effect in yttrium iron garnets (YIG)
• Evidence for thermal spin transfer torque
• Proximity-free enhancement of anomalous Nernst effects in metallic multilayers
• Thermally driven spin and charge currents in thin NiFe2O4/Pt films
• Experimental evidences of a large extrinsic spin Hall effect in AuW alloy
• Observation of huge thermal spin currents in magnetic multilayers
• Transverse thermoelectric effect in La0.67Sr0.33MnO3|SrRuO3 superlattices

Cited by in corpus (12)

• Quantitative disentanglement of spin Seebeck, proximity-induced and intrinsic anomalous Nernst effect in NM/FM bilayers
• Observation of spin Seebeck contribution to the transverse thermopower in Ni-Pt and MnBi-Au bulk nanocomposites
• Interface-induced anomalous Nernst effect in Fe3O4/Pt-based heterostructures
• Spincaloritronic measurements: a round robin comparison of the longitudinal spin Seebeck effect
• Fabrication of yttrium-iron-garnet/Pt multilayers for the longitudinal spin Seebeck effect
• Real-time monitoring of the structure of ultra thin Fe${}_3$O${}_4$ films during growth on Nb-doped SrTiO${}_3$(001)
• Spin Seebeck effect in Y-type hexagonal ferrite thin films
• Spin Seebeck effect and magnon diffusion length in ${\mathbf{Fe}}_3{\mathbf{O}}_4$
• Thermal spin current generation in the multifunctional ferrimagnet Ga${}_{0.6}$Fe${}_{1.4}$O${}_3$
• Impact of strain and morphology on magnetic properties of Fe${}_3$O${}_4$/NiO bilayers grown on Nb:SrTiO${}_3$(001) and MgO(001)
• Giant enhancement in Rashba spin-Seebeck effect in NiFe/p-Si thin films
• Electric power transfer in spin pumping experiments