The spin Hall angle and spin diffusion length of Pd measured by spin pumping and microwave photoresistance

被引：24

作者：

Tao, X. D. ^{[1
]}

Feng, Z. ^{[1
]}

Miao, B. F. ^{[1
]}

Sun, L. ^{[1
]}

You, B. ^{[1
]}

Wu, D. ^{[1
]}

Du, J. ^{[1
]}

Zhang, W. ^{[1
]}

Ding, H. F. ^{[1
]}

机构：

[1] Nanjing Univ, Dept Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 17期

关键词：

D O I：

10.1063/1.4862215

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present the experimental study of the spin Hall angle (SHA) and spin diffusion length of Pd with the spin pumping and microwave photoresistance effects. The Py/Pd bilayer stripes are excited with an out-of-plane microwave magnetic field. The pure spin current is thus pumped and transforms into charge current via the inverse spin Hall effect (ISHE) in Pd layer, yielding an ISHE voltage. The ISHE voltage can be distinguished from the unwanted signal caused by the anisotropic magnetoresistance according to their different symmetries. Together with Pd thickness dependent measurements of in and out-of-plane precessing angles and effective spin mixing conductance, the SHA and spin-diffusion length of Pd are quantified as 0.0056 +/- 0.0007 and 7.3 +/- 0.7 nm, respectively. (C) 2014 AIP Publishing LLC.

引用

页数：3

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