Magnetic nanoscale dots on colloid crystal surfaces
Magnetic nanoscale dots on colloid crystal surfaces
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DOI：
10.1063/1.125882
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发表时间：
2000-02
影响因子：
4
通讯作者：
S. Li;W. Lew;Yongbing Xu;A. Hirohata;A. Samad;F. Baker;J. Bland
中科院分区：
文献类型：
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作者：
S. Li;W. Lew;Yongbing Xu;A. Hirohata;A. Samad;F. Baker;J. Bland
我们证明，均匀，有序，单畴磁性纳米点可以制造集中的胶体表面。衬底由生长在玻璃晶片上的紧凑的二氧化硅纳米球阵列组成。通过后续的Co薄膜的沉积和氧化处理，获得了具有可控磁性能和尺寸的单分散磁性Co纳米点阵。我们认为，沉积在胶体表面上的磁性点可能会开辟一条道路，开发人工纳米结构材料的纳米磁学的基础研究和应用，如图案化的磁记录介质。
We demonstrate that uniform, ordered, single-domain magnetic nanoscale dots can be fabricated on concentrated colloid surfaces. The substrate consists of compact silica nanosphere arrays grown on a glass wafer. Through the subsequent deposition and oxidation treatment of a Co film, monodisperse magnetic Co nanoscale dot arrays with controlled magnetic properties and size were obtained. We suggest that magnetic dots deposited on colloidal surfaces might open a way of developing artificially nanostructured materials for fundamental studies in nanomagnetism and for applications such as patterned magnetic recording media.