GMR properties of spin-valve structures with Co/Cu-based multilayers

被引：8

作者：

Kim, KY ^{[1
]}

Evetts, JE ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 198-99卷

关键词：

giant magnetoresistance; spin valve; multilayer; interlayer coupling;

D O I：

10.1016/S0304-8853(98)00634-9

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

We have investigated the magnetoresistance of multilayer structures in the form of a Co/Cu/Co sandwich superimposed on an antiferromagnetically coupled Co/Cu multilayer. The magnetoresistive response consists of two parts. A low-field MR of about 5% that corresponds to the reversal of the top layer in the sandwich, and a high field MR of about 12% with high saturation field typical of a Co/Cu multilayer. The variation of MR response was studied as a function of the Cu thickness in the sandwich structure. In particular, the sample with structure Si/[Co/Cu](5)/Co(25 Angstrom)/Cu(25 Angstrom)/Co(30 Angstrom) exhibits a sensitivity as large as 2%/Oe and a switching field of less than 5 Oe. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：92 / 94

页数：3

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