Enhancement of the spin Peltier effect in multilayers

被引：37
|
作者：
Uchida, K. [1 ,2 ,3 ,4 ]
Iguchi, R. [1 ,2 ]
Daimon, S. [2 ,5 ]
Ramos, R. [5 ]
Anadon, A. [6 ,7 ]
Lucas, I. [6 ,7 ,8 ]
Algarabel, P. A. [7 ,9 ,10 ]
Morellon, L. [6 ,7 ,8 ]
Aguirre, M. H. [6 ,7 ,8 ,11 ]
Ibarra, M. R. [6 ,7 ,8 ,11 ]
Saitoh, E. [2 ,3 ,5 ,12 ]
机构：
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[3] Tohoku Univ, Ctr Spintron Res Network, Sendai, Miyagi 9808577, Japan
[4] Japan Sci & Technol Agcy, PRESTO, Saitama 3320012, Japan
[5] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
[6] Univ Zaragoza, Inst Nanociencia Aragon, E-50018 Zaragoza, Spain
[7] Univ Zaragoza, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain
[8] Fdn Inst Nanociencia Aragon, E-50018 Zaragoza, Spain
[9] Univ Zaragoza, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain
[10] CSIC, E-50009 Zaragoza, Spain
[11] Univ Zaragoza, Lab Microscopias Avanzadas, E-50018 Zaragoza, Spain
[12] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
来源：
PHYSICAL REVIEW B | 2017年 / 95卷 / 18期
关键词：
SPINTRONICS; HEAT;
D O I：
10.1103/PhysRevB.95.184437
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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] x 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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页数：8
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