GIANT MAGNETORESISTANCE IN HETEROGENEOUS AGCO ALLOY-FILMS

被引：71

作者：

CAREY, MJ ^{[1
]}

YOUNG, AP ^{[1
]}

STARR, A ^{[1
]}

RAO, D ^{[1
]}

BERKOWITZ, AE ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO,CTR MAGNET RECORDING RES,LA JOLLA,CA 92093

来源：

APPLIED PHYSICS LETTERS | 1992年 / 61卷 / 24期

关键词：

D O I：

10.1063/1.108027

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Giant magnetoresistance in heterogeneous, sputtered AgCo thin films is reported. The films consist of Co-rich precipitates in an Ag-rich matrix. DELTArho/rho values as high as 55% at 4.2 K and 20% at room temperature are observed. The magnetoresistance is shown to depend on the Co concentration as well as the particle size. Upon annealing, DELTArho/rho first increases, then decreases. DELTArho, however, decreases monotonically with annealing.

引用

页码：2935 / 2937

页数：3

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