Enhancement of the spin Peltier effect in multilayers

Uchida, K. ; Iguchi, R. ; Daimon, S. ; Ramos, R. ; Anadón, A. (Universidad de Zaragoza) ; Lucas, I. ; Algarabel, P.A. (Universidad de Zaragoza) ; Morellón, L. (Universidad de Zaragoza) ; Aguirre, M.H. (Universidad de Zaragoza) ; Ibarra, M.R. (Universidad de Zaragoza) ; Saitoh, E.

Resumen: The spin Peltier effect (SPE), heat-current generation as a result of spin-current injection, has been investigated in alternately stacked Pt/Fe3O4 multilayer films. The temperature modulation induced by the SPE in the [Pt/Fe3O4] × n films was found to be significantly enhanced with increasing the number of Pt/Fe3O4 bilayers n. This SPE enhancement is much greater than that expected for a simple stack of independent Pt/Fe3O4 bilayers. The observed n dependence of the SPE can be explained by introducing spin-current redistribution in the multilayer films in the thickness direction, in a manner similar to the enhancement of the spin Seebeck effect in multilayers.

Idioma: Inglés

DOI: 10.1103/PhysRevB.95.184437

Año: 2017

Publicado en: Physical Review B 95 (2017), 184437 [8 pp.]
ISSN: 2469-9950

Factor impacto JCR: 3.813 (2017)

Categ. JCR: PHYSICS, CONDENSED MATTER rank: 18 / 67 = 0.269 (2017) - Q2 - T1

Financiación: info:eu-repo/grantAgreement/ES/DGA/E26
Financiación: info:eu-repo/grantAgreement/EC/H2020/734187/EU/Spin conversion, logic storage in oxide-based electronics/SPICOLOST
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2014-51982-C-R

Tipo y forma: Artículo (Versión definitiva)

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