GIANT MAGNETORESISTANCE IN MELT-SPUN CU87CO13

被引：14

作者：

HOWSON, MA ^{[1
]}

MUSA, SO ^{[1
]}

WALKER, MJ ^{[1
]}

HICKEY, BJ ^{[1
]}

COCHRANE, R ^{[1
]}

STEVENS, R ^{[1
]}

机构：

[1] UNIV LEEDS,SCH MAT,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 75卷 / 10期

关键词：

D O I：

10.1063/1.356943

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Results for the temperature and magnetic-field dependence of melt-spun Cu87Co13 are presented and discussed. The magnetoresistance of the as-spun sample exhibits superparamagnetic behavior with a magnetoresistance of 18% at 0.4 K and in a field of 80 kOe. The magnetic-field dependence of the magnetoresistance is approximately proportional to the Langevin function. The microstructure of the sample was investigated by transmission electron microscopy and it appears that the giant magnetoresistance is due to the presence of small Co precipitates with an approximate mean diameter of 12 angstrom and a mean separation of 35 angstrom.

引用

页码：6546 / 6547

页数：2

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