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    • 4. 发明申请
    • PATTERNING MAGNETIC NANOSTRUCTURES
    • 绘制磁性纳米结构
    • WO2004027791A1
    • 2004-04-01
    • PCT/US2003/029077
    • 2003-09-17
    • NORTHWESTERN UNIVERSITYMIRKIN, Chad, A.FU, LeiLIU, XiaogangDRAVID, Vinayak, P.
    • MIRKIN, Chad, A.FU, LeiLIU, XiaogangDRAVID, Vinayak, P.
    • H01F1/00
    • B82Y25/00H01F1/009
    • A direct-write method for fabricating magnetic nanostructures, including hard magnetic nanostructures of barium hexaferrite, BaFe, based on nanolithographic printing and a sol-gel process. This method utilizes a conventional atomic force microscope tip, coated with a magnetic material precursor solution, to generate patterns that can be post-treated at elevated temperature to generate magnetic features consisting of barium ferrite in its hexagonal magnetoplumbite (M-type) structure. Features ranging from several hundred nm down to below 100 nm were generated and studied using AFM, magnetic force microscopy, and X-ray photoelectron spectroscopy. The approach offers a new way for patterning functional inorganic magnetic nanostructures with deliberate control over feature size and shape, as well as interfeature distance and location.
    • 一种用于制造磁纳米结构的直写方法,包括基于纳米光刻印刷的六方铁钡钡硬质纳米结构和BaFe,以及溶胶 - 凝胶法。 该方法利用传统的原子力显微镜尖端,涂覆有磁性材料前体溶液,以产生可在升高的温度下进行后处理的图案,以产生由六方晶磁石(M型)结构的钡铁氧体组成的磁特征。 使用AFM,磁力显微镜和X射线光电子能谱技术生产并研究了从几百nm到低于100nm的特征。 该方法提供了一种新颖的方式来对功能性无机磁性纳米结构进行图案化,并有意识地控制特征尺寸和形状,以及间隔距离和位置。