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Binary Ferromagnetic Nanostructures: Fabrication, Static and Dynamic Properties

机译:二元铁磁纳米结构:制备,静态和动态特性

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摘要

The fabrication of large area binary magnetic nanostructures made from one or two ferromagnetic materials (Ni and Ni_(80)Fe_(20)) is reported using self-aligned shadow deposition technique. The static and dynamic properties are characterized using magneto-optical Kerr effects (MOKE) and broadband ferromagnetic resonance spectroscopy. Compared with Ni_(8O)Fe_(20) nanomag-nets made using a conventional lithographic technique from identical resist templates, tunable magnetization switching is observed with a marked increase in the coercive field and more adjustable dynamic response for the Ni_(80)Fe(20)/Ni(80)Fe(20) and Ni/Ni(80)Fe(20) binary structures. The results are validated by direct domain imaging using magnetic force microscopy and micromag-netic simulations.
机译:使用自对准阴影沉积技术报道了由一种或两种铁磁材料(Ni和Ni_(80)Fe_(20))制成的大面积二元磁性纳米结构的制造。使用磁光克尔效应(MOKE)和宽带铁磁共振光谱对静态和动态特性进行表征。与使用传统光刻技术从相同的抗蚀剂模板制成的Ni_(8O)Fe_(20)纳米磁铁相比,可观察到的可调磁化开关的矫顽场显着增加,并且Ni_(80)Fe( 20)/ Ni(80)Fe(20)和Ni / Ni(80)Fe(20)二元结构。通过使用磁力显微镜和微电磁模拟的直接域成像来验证结果。

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  • 来源
    《Advanced Functional Materials》 |2013年第13期|1684-1691|共8页
  • 作者单位

    Information Storage Materials Laboratory Department of Electrical and Computer Engineering National University of Singapore 117576, Singapore;

    Information Storage Materials Laboratory Department of Electrical and Computer Engineering National University of Singapore 117576, Singapore;

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