GIANT MAGNETORESISTANCE IN NIFE-AG GRANULAR ALLOYS

被引：7

作者：

BADIA, F ^{[1
]}

LABARTA, A ^{[1
]}

BATLLE, X ^{[1
]}

WATSON, ML ^{[1
]}

机构：

[1] COVENTRY UNIV,CTR DATA STORAGE MAT,COVENTRY CV1 5FB,W MIDLANDS,ENGLAND

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 76卷 / 10期

关键词：

D O I：

10.1063/1.358232

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Some FeNi-Ag granular films of composition Fe11.43Ni 6.35Ag82.22 (sample A) and Fe7.62Ni 16.4Ag75.98 (B) were prepared by using rf magnetron sputtering, and once deposited were rapidly annealed at 600, 650, and 750°C. All samples displayed giant magnetoresistance. The zero-field-cooled and field-cooled processes evidence the segregation of ferromagnetic particles with a broad size distribution. The temperature and magnetic field dependence of the resistance is analyzed. The magnetoresistance follows a Hn law at high fields and it decays from its maximum value with a Tm behavior, with m approaching 1 at high fields.

引用

页码：6481 / 6483

页数：3

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