学术
巨磁电阻效应的非接触光学表征方法研究
钟智勇[1] 刘爽[2] 唐晓莉[1] 石玉[1] 张怀武[1]
[1]电子科技大学电子薄膜与集成器件国家重点实验室,成都610054 [2]电子科技大学光电信息学院,成都610054
摘 要:
根据自平均极限模型推导了在巨磁电阻薄膜中折射系数与自旋非对称因子的关系。用傅立叶变换红外光谱仪组建了磁折射效应测试装置,并测试了自旋阀多层薄膜（Si/PtMn/CoFe/Ru/CoFe/Cu/Co/NiFe）的磁折射效应。结果表明：在红外波段,可以用磁折射效应表征巨磁电阻效应。[著者文摘]
文章出处:
《电子科技大学学报》-2007年36卷4期 -657-659页
栏目信息:
文献标识码:
A
An Optical Method of Contactless Measurement of Giant Magnetoresistance Effects in Magnetic Multi-Layer Films
ZHONG Zhi-yong, LIU Shuang, TANG Xiao-li, SHI Yu, ZHANG Huai-wu（ 1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China Chengdu 610054; 2. School of Optoelectronic Information, University of Electronic Science and Technology of China Chengdu 610054）
Abstract:
The dependence of refractive index on spin asymmetrical coefficient was deduced based on self-averaging limit model in magnetic thin film materials with giant magnetoresistance effects and a measurement system using Fourier transform infrared spectroscopy was constructed to measure magnetorefractive effects （MRE）. The measurement results of spin-valve multilayers Si/PtMn/CoFe/Ru/CoFe/Cu/Co/NiFe showed that MRE can be used to characterize GMR effect of magnetic thin films in infrared region.[著者文摘]
Key words:
giant magnetoresistance effect;magnetorefractive effect;magnetic materials;spin electronics
基金资助:
国家自然科学基金资助项目（90306015、60490296、60671029）;教育部科技重点资助项目（105151）;四川省青年学术带头人培养基金资助项目（04ZQ026-003）.本文的研究工作得到英国University of York大学Sarah Thompson博士提供的实验的支持,在此表示感谢.
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