Current perpendicular to the plane spin-valves with CoFeGe magnetic layers

被引：23

作者：

Maat, S. ^{[1
]}

Carey, M. J. ^{[1
]}

Childress, J. R. ^{[1
]}

机构：

[1] Hitachi Global Storage Technol, San Jose Res Ctr, San Jose, CA 95135 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 14期

关键词：

Cobalt alloys;

D O I：

10.1063/1.2993213

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetotransport properties of current perpendicular to the plane giant magnetoresistive spin-valves utilizing (CoFe)(100-x)Ge(x) alloys are investigated. The composition range of 21 <= x <= 32 at. % is determined to be the alloy composition that maximizes magnetoresistance. Delta RA values of 2.6 m Omega-mu m(2) are measured for spin-valves with CoFeGe in the free and reference layer resulting in magnetoresistance values of greater than 6%, which is almost twice the value of similar spin-valves with CoFeAl alloys. An analysis of the physical properties of the CoFeGe thin films in the range of interest is also presented. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2993213]

引用

页数：3

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