Transverse thermoelectric effect in La0.67Sr0.33MnO3|SrRuO3 superlattices

Abstract

Transverse thermoelectric effects in response to an out-of-plane heat current have been studied in an external magnetic field for ferromagnetic superlattices consisting of La0.67Sr0.33MnO3 and SrRuO3 layers. The superlattices were fabricated on SrTiO3 substrates by pulsed laser deposition. We found that the sign of the transverse thermoelectric voltage for the superlattices is opposite to that for La0.67Sr0.33MnO3 and SrRuO3 single layers at 200 K, implying an important role of spin Seebeck effects inside the superlattices. At 10 K, the magnetothermoelectric curves shift from the zero field due to an antiferromagnetic coupling between layers in the superlattices.

References in corpus (6)

• Berry phase effect in anomalous thermoelectric transport
• Quantum transport theory of anomalous electric, thermoelectric, and thermal Hall effects in ferromagnets
• Mott Relation for Anomalous Hall and Nernst effects in Ga1-xMnxAs Ferromagnetic Semiconductors
• Paramagnetic spin pumping
• Magnetocaloric effect and improved relative cooling power in (La0.7Sr0.3MnO3/SrRuO3) superlattices
• Strain dependence of antiferromagnetic interface coupling in La0.7Sr0.3MnO3/SrRuO3 superlattices

Cited by in corpus (6)

• Proximity-free enhancement of anomalous Nernst effects in metallic multilayers
• Thermoelectric performance of spin Seebeck effect in Fe3O4/Pt-based thin film heterostructures
• Spin Seebeck effect in a polar antiferromagnet $\alpha$-Cu${}_2$V${}_2$O${}_7$
• Interface-induced anomalous Nernst effect in Fe3O4/Pt-based heterostructures
• Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices
• Spin Seebeck effect in paramagnets and antiferromagnets at elevated temperatures