Longitudinal spin Seebeck effect in various garnet ferrites

被引：101

作者：

Uchida, K. ^{[1
,2
]}

Nonaka, T. ^{[1
]}

Kikkawa, T. ^{[1
]}

Kajiwara, Y. ^{[1
]}

Saitoh, E. ^{[1
,3
,4
,5
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[2] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

[3] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

[4] Japan Sci & Technol Agcy, CREST, Tokyo 1020076, Japan

[5] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

来源：

PHYSICAL REVIEW B | 2013年 / 87卷 / 10期

关键词：

CALORITRONICS; FERROMAGNET; TORQUE;

D O I：

10.1103/PhysRevB.87.104412

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The longitudinal spin Seebeck effect (LSSE) is investigated in various garnet ferrites Y3-xRxFe5-yMyO12 (R = Gd, Ca; M = Al, Mn, V, In, Zr) by means of the inverse spin Hall effect in Pt films. The magnitude of the LSSE voltage in the Pt/Y3-xRxFe5-yMyO12 samples is found to be enhanced with increasing concentration of Fe in the garnet ferrites, which can be explained by a change in the spin-mixing conductance at the Pt/Y3-xRxFe5-yMyO12 interfaces. We also investigate the dependence of the LSSE voltage on macroscopic magnetic parameters of Y3-xRxFe5-yMyO12. The experimental results show that the LSSE voltage in the Pt/Y3-xRxFe5-yMyO12 samples has a positive correlation with the Curie temperature and the saturation magnetization, but no clear correlation with the gyromagnetic ratio and the Gilbert damping constant of the samples. DOI: 10.1103/PhysRevB.87.104412

引用

页数：6

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