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
收藏
页码：6481 / 6483
页数：3
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