GIANT MAGNETORESISTANCE IN OBLIQUELY COEVAPORATED CO-AG FILMS

被引：17

作者：

LODDER, JC

DEHAAN, P

VANKRANENBURG, H

机构：

[1] MESA Research Institute, Information Storage Technology Group, University of Twente, 7500 AE Enschede

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1993年 / 128卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(93)90879-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetoresistance (MR) measurements at room temperature have been performed on obliquely (co-) evaporated Ag-Co films deposited at room- and elevated-temperatures. The 'giant' magnetoresistance ratio (max. 13% for a composition of about Co35Ag65) over a wide range of compositions has been measured. The films are polycrystalline and grown in a columnar morphology. The columnar diameter depends on the thickness and is < 20 nm at 400 nm thickness. From XRD, NMR and saturation magnetization (M(s)) vs. at% Ag, one can conclude that the films consist of Co-Co and Ag-Ag clusters. The coercivity depends on the thickness of the films (100-700 nm) and varies from 5 to 15 kA/m.

引用

页码：219 / 228

页数：10

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