Durable giant magnetoresistive sensors using Co/Cu superlattices

被引：13

作者：

Suzuki, M

Ohwaki, T

Taga, Y

机构：

[1] TOYOTA Ctrl. R. and D. Labs., Inc., Nagakute

来源：

THIN SOLID FILMS | 1997年 / 304卷 / 1-2期

关键词：

cobalt; copper; multilayers; sensors;

D O I：

10.1016/S0040-6090(97)00074-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have demonstrated the usefulness of giant magnetoresistance (GMR) in Co/Cu superlattices for practical application to the magnetic rotation sensor. Optimized Co/Cu superlattices have been fabricated into sensors with appropriate passivation layers. The sensor output changes more than 20%, synchronizing the rotation of the magnet rotor. It is remarkable that there is no significant degradation of the GMR sensors even after they are left in the atmosphere of the air at 150 degrees C for 1000 h. This confirms the high reliability of the GMR sensors and promises that they can be used in automobiles and aircraft under severe conditions. (C) 1997 Elsevier Science S.A.

引用

收藏

页码：333 / 338

页数：6

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