Pure detection of the acoustic spin pumping in Pt/YIG/PZT structures

被引：4

作者：

Uchida, Ken-ichi ^{[1
,2
]}

Qiu, Zhiyong ^{[3
]}

Kikkawa, Takashi ^{[1
]}

Saitoh, Eiji ^{[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 Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

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

来源：

SOLID STATE COMMUNICATIONS | 2014年 / 198卷

关键词：

Insulators; Magnetically ordered materials; Phonons; Spin dynamics;

D O I：

10.1016/j.ssc.2013.10.012

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The acoustic spin pumping (ASP) stands for the generation of a spin voltage from sound waves in a ferromagnet/paramagnet junction. In this letter, we propose and demonstrate a method for pure detection of the ASP, which enables the separation of sound-wave-driven spin currents from the spin Seebeck effect due to the heating of a sample caused by a sound-wave injection. Our demonstration using a Pt/YIG/PZT sample shows that the ASP signal in this structure measured by a conventional method is considerably offset by the heating signal and that the pure ASP signal is one order of magnitude greater than that reported in the previous study. (C) 2013 Elsevier Ltd. All rights reserved

引用

页码：26 / 29

页数：4

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