Transverse thermoelectric effect in La{sub 0.67}Sr{sub 0.33}MnO{sub 3}|SrRuO{sub 3} superlattices

Journal Article · Mon Jun 08 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4922294· OSTI ID:22412556

Shiomi, Y. ^[1]; Handa, Y.; Kikkawa, T. ^[1]; Saitoh, E. ^[1]

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1. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)

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 La{sub 0.67}Sr{sub 0.33}MnO{sub 3} and SrRuO{sub 3} layers. The superlattices were fabricated on SrTiO{sub 3} substrates by pulsed laser deposition. We found that the sign of the transverse thermoelectric voltage for the superlattices is opposite to that for La{sub 0.67}Sr{sub 0.33}MnO{sub 3} and SrRuO{sub 3} 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.

• OSTI ID: 22412556
• Journal Information: Applied Physics Letters, Vol. 106, Issue 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
ENERGY BEAM DEPOSITION
LANTHANUM ALLOYS
LASER RADIATION
LAYERS
PULSED IRRADIATION
RUTHENIUM OXIDES
SEEBECK EFFECT
SPIN
STRONTIUM ALLOYS
STRONTIUM TITANATES
SUBSTRATES
SUPERLATTICES
TEMPERATURE RANGE 0065-0273 K