Towards a unified picture of spin dependent transport in and perpendicular giant magnetoresistance and bulk alloys

被引：50

作者：

Hsu, SY ^{[1
]}

Barthelemy, A ^{[1
]}

Holody, P ^{[1
]}

Loloee, R ^{[1
]}

Schroeder, PA ^{[1
]}

Fert, A ^{[1
]}

机构：

[1] THOMSON CSF,UMR CNRS,F-91404 ORSAY,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.78.2652

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

From data on (Fe1-xVx/Cu/Co/Cu)(N) multilayers, we show that Fe doped with V gains a negative spin asymmetry for bulk scattering (beta < 0), which, combined with the positive asymmetry of Co, accounts for the inverse current perpendicular to the plane (CPP) giant magnetoresistance (GMR) we observe. More precisely, the competition between positive and negative asymmetries for interface and bulk scatterings in FeV leads to inverse (normal) GMR for layers thicker (thinner) than a compensation thickness. The negative beta of FeV is consistent with theoretical predictions and bulk alloy data. The current in the plane (CIP) GMR is not reversed, which illustrates the role of channeling in CIP.

引用

页码：2652 / 2655

页数：4

共 17 条

[1] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].