Perpendicular-current exchange-biased spin-valve evidence for a short spin-diffusion length in permalloy

被引：91

作者：

Steenwyk, SD

Hsu, SY

Loloee, R

Bass, J

Pratt, WP

机构：

[1] MICHIGAN STATE UNIV,CTR FUNDAMENTAL MAT RES,DEPT PHYS & ASTRON,E LANSING,MI 48824

[2] MICHIGAN STATE UNIV,CTR SENSOR MAT,MRSEC,NSF,E LANSING,MI 48824

[3] CALVIN COLL,DEPT PHYS,GRAND RAPIDS,MI 49546

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1997年 / 170卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

giant magnetoresistance CPP; spin-valve; spin-diffusion length; spin-switch; permalloy;

D O I：

10.1016/S0304-8853(97)00061-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the first measurements of giant magnetoresistance with current perpendicular to the layer planes (CPP-MR) of an exchange-biased spin-valve (EBSV) - a controllable spin-switch. Interpreted with the theory of Valet and Fert. data on EBSVs of permalloy (Py) with Cu yield an unexpectedly short spin-diffusion length in Py -l(sf)(Py) = 5.5 +/- 1 nm. Such a short has implications for the interpretation of Johnson's data on a Py/Au/Py spin-switch.

引用

页码：L1 / L6

页数：6

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