Temperature-dependent asymmetry of the nonlocal spin-injection resistance: Evidence for spin nonconserving interface scattering

被引：108

作者：

Garzon, S ^{[1
]}

Zutic, I

Webb, RA

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[2] Univ Maryland, Ctr Superconduct Res, College Pk, MD 20742 USA

[3] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA

[4] Univ S Carolina, Dept Phys, Columbia, SC 29208 USA

[5] Univ S Carolina, USC NanoCtr, Columbia, SC 29208 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.94.176601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report nonlocal spin injection and detection experiments on mesoscopic Co-Al2O3-Cu spin valves. We have observed a temperature-dependent asymmetry in the nonlocal resistance between parallel and antiparallel configurations of the magnetic injector and detector. This strongly supports the existence of a nonequilibrium resistance that depends on the relative orientation of the detector magnetization and the nonequilibrium magnetization in the normal metal providing evidence for increasing interface spin scattering with temperature.

引用

页数：4

共 26 条

[1] Spin transport in interacting quantum wires and carbon nanotubes [J].