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.

引用

页数：8