(Ni0.81Fe0.19)0.66Cr0.34/Ni0.81Fe0.19薄膜的各向异性磁电阻效应及尺寸效应

无机材料学报, 2002, 17(2): 321-325.

(Ni_0.81Fe_0.19)_0.66Cr_0.34/Ni_0.81Fe_0.19薄膜的各向异性磁电阻效应及尺寸效应

彭子龙 , 李佐宜 , 胡强 , 杨晓非

2. 2. 中国科学院物理研究所凝聚态物理中心和磁学国家重点实验室, 北京 100080

1.1.

Department of Electronic Science and Technology

Huazhong University of Science and Technology

Wuhan 430074

China

2. 2. State Key Laboratory of Magnetism

关键词：坡莫合金薄膜 , anisotropic magnetoresistance effect , buffer , size effect

Anisotropic Magnetoresistance and Size Effect of (Ni0.81Fe_0.19)_0.66Cr_0.34/Ni_0.81Fe_0.19 Thin films

PENG Zi-Long , LI Zuo-Yi , HU Qiang , YANG Xiao-Fe

Keywords： Permalloy thin film , 各向异性磁电阻效应 , 过渡层 , 尺寸效应

研究了以非磁性（Ｎｉ_０．８１Ｆｅ_０．１９）_０．６６ＣＲ_０．３４薄膜作为过诞层的坡莫合金Ｎｉ_０．８１Ｆｅ_０．１９薄膜的磁电阻效应和饱和磁场，分析退火处理对样品饱和磁场的影响和经刻蚀后的磁电阻效应膜线的尺寸效应，并建立一个统计模型定性分析了其性能变化的机理，计算结果符合实验．

The anisotropic magnetoresistance (AMR) and saturation magnetic field of the Permalloy thin films (Ni_0.81Fe_0.19) sputtered on a nonmagnetic (Ni_0.81Fe_0.19)_0.66Cr_0.34 buffer layer were measured. The AMR variations of the films after annealing and the size effect of the AMR stripes after etching were emphatically studied, and a qualitative analysis was proposed through a statistic model. The simulation results agree with the experiments.

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