Observation of the spin Seebeck effect in epitaxial Fe3O 4 thin films

Ramos,R. ; Kikkawa,T. ; Uchida,K. ; Adachi,H. ; Lucas,I. (Universidad de Zaragoza) ; Aguirre,M. H. (Universidad de Zaragoza) ; Algarabel,P. (Universidad de Zaragoza) ; Morellon,L. (Universidad de Zaragoza) ; Maekawa,S. ; Saitoh,E. ; Ibarra,M. R. (Universidad de Zaragoza)

Resumen: We report the experimental observation of the spin Seebeck effect in magnetite thin films. The signal observed at temperatures above the Verwey transition is a contribution from both the anomalous Nernst (ANE) and spin Seebeck (SSE) effects. The contribution from the ANE of the Fe3O4 layer to the SSE is found to be negligible due to the resistivity difference between Fe3O4 and Pt layers. Below the Verwey transition, the SSE is free from the ANE of the ferromagnetic layer and it is also found to dominate over the ANE due to magnetic proximity effect on the Pt layer.

Idioma: Inglés

DOI: 10.1063/1.4793486

Año: 2013

Publicado en: Applied Physics Letters 102, 7 (2013), [13 pp.]
ISSN: 0003-6951

Factor impacto JCR: 3.515 (2013)

Categ. JCR: PHYSICS, APPLIED rank: 20 / 135 = 0.148 (2013) - Q1 - T1

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)