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

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.
Authors:
 [1] ;  [2] ; ;  [1] ;  [1] ;  [2] ;  [2] ;  [2] ;  [2]
  1. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22412556
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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