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arXiv 0811.2331cond-mat.mtrl-sci
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Cu $_{0,47}$ Ni $_{0,53}$薄膜低温磁畴结构的观察

Observation of the magnetic domain structures in Cu$_{0,47}$Ni$_{0,53}$ thin films at low temperatures

I. S. Veshchunov, V. A. Oboznov, A. N. Rossolenko, A. S. Prokofiev, L. Ya. Vinnikov, A. Yu. Rusanov, D. V. Matveev

摘要:

本文首次报道了在液氦温度下不同厚度的弱铁磁性Cu $_{0,47}$ Ni $_{0,53}$合金薄膜中畴结构的可视化实验。采用改进的高分辨率Bitter装饰技术绘制了远低于居里温度T $_{Curie}$($\sim$ 60 K)的薄膜顶部的磁衬度。相反,磁力显微镜,这种技术允许可视化的域结构没有其干扰,而更大的面积的样品进行了探测。迷宫般的域模式,典型的垂直磁各向异性,进行了观察。发现平均畴宽度为约100 nm。

英文摘要:

We report on the first experimental visualization of domain structure in films of weakly ferromagnetic Cu$_{0,47}$Ni$_{0,53}$ alloy with different thickness at liquid helium temperatures. Improved high-resolution Bitter decoration technique was used to map the magnetic contrast on the top of the films well below the Curie temperature T$_{Curie}$ ($\sim$ 60 K). In contrast to magnetic force microscopy, this technique allowed visualization of the domain structure without its disturbance while the larger areas of the sample were probed. Maze-like domain patterns, typical for perpendicular magnetic anisotropy, were observed. The average domain width was found to be about 100 nm.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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