Unbalanced spin accumulation induced by spin Hall effect

被引：1

作者：

Huh, Seon-Gu

Koo, Hyun Cheol ^{[1
]}

Eom, Jonghwa

Yi, Hyunjung

Chang, Joonyeon

Han, Suk-Hee

机构：

[1] Korea Inst Sci & Technol, Nano Device Res Ctr, Seoul 136791, South Korea

[2] Sejong Univ, Dept Phys, Seoul 143747, South Korea

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期

关键词：

spin Hall effect; stray field; spin-dependent deflection; skew scattering; spin accumulation;

D O I：

10.1016/j.jmmm.2006.10.1013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Moving electrons of different spins experience skew scattering in a two-dimensional electron gas layer and the electron deviates different direction due to the spin-dependent deflection. If spin is randomly oriented, the amount of skew scattering on both sides will be same and the Hall voltage will read zero. In this experiment, the carrier concentrations of spin up and down are unbalanced because the spin is aligned by stray field from the ferromagnet. Therefore, the voltage probe reads charge accumulation asymmetry. Spin Hall voltage is functions of the spin alignment direction and the amount of spin polarization. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：E705 / E707

页数：3

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