Experimental observation of spin-to-charge current conversion at non-magnetic metal/Bi2O3 interfaces

被引：74

作者：

Karube, Shutaro ^{[1
,2
]}

Kondou, Kouta ^{[2
]}

Otani, YoshiChika ^{[1
,2
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[2] RIKEN, Ctr Emergent Matter Sci, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

来源：

APPLIED PHYSICS EXPRESS | 2016年 / 9卷 / 03期

基金：

日本学术振兴会;

关键词：

Copper - Binary alloys - Nickel alloys;

D O I：

10.7567/APEX.9.033001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Here, we demonstrate interfacial spin-to-charge current conversion by means of spin pumping from a ferromagnetic permalloy (Py: Ni80Fe20) to a Cu/Bi2O3 interface. A clear peak owing to the spin-to-charge current conversion was observed in the voltage spectrum of a Py/Cu/Bi2O3 trilayer film, whereas no peak was observed in Py/Cu and Py/Bi2O3 bilayer films. We also found that the conversion coefficient strongly depended on the Cu thickness, reflecting the thickness-dependent momentum relaxation time for the Cu layer. (C) 2016 The Japan Society of Applied Physics

引用

页数：4