Enhancement of the spin Peltier effect in multilayers

K. Uchida; R. Iguchi; S. Daimon; R. Ramos; A. Anadón; I. Lucas; P. A. Algarabel; L. Morellón; M. H. Aguirre; M. R. Ibarra; E. Saitoh

doi:10.1103/PhysRevB.95.184437

Enhancement of the spin Peltier effect in multilayers

K. Uchida, R. Iguchi, S. Daimon, R. Ramos, A. Anadón, I. Lucas, P. A. Algarabel, L. Morellón, M. H. Aguirre, M. R. Ibarra, E. Saitoh

IMR - Integrated Research Division

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38 Citations (Scopus)

Abstract

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.

Original language	English
Article number	184437
Journal	Physical Review B
Volume	95
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.95.184437
Publication status	Published - 2017 May 30

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title = "Enhancement of the spin Peltier effect in multilayers",

abstract = "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.",

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AU - Uchida, K.

AU - Iguchi, R.

AU - Daimon, S.

AU - Ramos, R.

AU - Anadón, A.

AU - Lucas, I.

AU - Algarabel, P. A.

AU - Morellón, L.

AU - Aguirre, M. H.

AU - Ibarra, M. R.

AU - Saitoh, E.

PY - 2017/5/30

Y1 - 2017/5/30

N2 - 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.

AB - 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.

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Enhancement of the spin Peltier effect in multilayers

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