Hexagonally ordered 100 nm period nickel nanowire arrays
Hexagonally ordered 100 nm period nickel nanowire arrays
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DOI：
10.1063/1.1399006
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发表时间：
2001-08-27
影响因子：
4
通讯作者：
Kronmüller, H
中科院分区：
文献类型：
--
作者：
Nielsch, K;Wehrspohn, RB;Kronmüller, H
用磁强计和磁力显微镜表征了镶嵌在高度有序氧化铝孔基质中的100 nm周期镍纳米线阵列的磁性。在保持纳米线间距不变的情况下，将纳米线的直径从55 nm减小到30 nm，可以使矫顽场从600 Oe增加到1200 Oe，剩磁从30%增加到100%。阵列的磁区结构在退磁状态下呈现出迷宫状图案。这些结果表明，单畴纳米线的杂散场相互作用完全依赖于纳米线的直径。(C)2001年美国物理研究所。
The magnetic behavior of 100 nm period arrays of Ni nanowires embedded in a highly ordered alumina pore matrix were characterized by magnetometry and magnetic force microscopy. Reducing the diameter of the nanowires from 55 to 30 nm while keeping the interwire distance constant leads to increasing coercive fields from 600 to 1200 Oe and to increasing remanence from 30% to 100%. The domain structure of the arrays exhibits in the demagnetized state a labyrith-like pattern. These results show that stray field interactions of single domain nanowires are entirely dependent on the nanowire diameter. (C) 2001 American Institute of Physics.