SPIN RELAXATION EFFECTS IN THE PERPENDICULAR MAGNETORESISTANCE OF MAGNETIC MULTILAYERS

被引：68

作者：

FERT, A ^{[1
]}

DUVAIL, JL ^{[1
]}

VALET, T ^{[1
]}

机构：

[1] THOMSON CSF, CENT RECH LAB, F-91404 ORSAY, FRANCE

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.52.6513

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The spin-diffusion length is the scaling length of the perpendicular giant magnetoresistance in magnetic multilayers and, according to recent experiments, the magnetoresistance ratio can be significantly reduced by enhancing the spin relaxation and thus shortening the spin-diffusion length. We present a theoretical picture of these spin-diffusion-length effects on the magnetoresistance. We also calculate the contribution from several mechanisms (spin-orbit scattering, exchange scattering by paramagnetic impurities, electron-magnon scattering) to the spin relaxation and spin-diffusion length.

引用

页码：6513 / 6521

页数：9

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