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多层膜巨磁电阻特性及电流最佳测量

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Indexed by: Journal Article

Date of Publication: 2012-04-20

Journal: 物理实验

Volume: 32

Issue: 4

Page Number: 5-8,16

ISSN: 1005-4642

Key Words: 巨磁电阻;多层膜;磁场方向;磁偏置

Abstract: 测量了不同方向外磁场和温度下多层膜巨磁电阻的磁阻特性,给出了巨磁电阻模拟传感器用于电流测量的最佳磁偏置.结果表明:外磁场强度相同但方向不同,对巨磁电阻的作用效果不同,巨磁电阻饱和时,阻值与外磁场方向无关.温度不同,巨磁电阻的阻值不同,磁电阻变化率也有改变.

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