Core-Shell Cylindrical Magnetic Domains in Nickel Wires Prepared under Magnetic Fields
Core-Shell Cylindrical Magnetic Domains in Nickel Wires Prepared under Magnetic Fields
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DOI：
10.1021/jp809087d
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发表时间：
2009-01
影响因子：
3.7
通讯作者：
Lixia Sun;Qianwang Chen
中科院分区：
文献类型：
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作者：
Lixia Sun;Qianwang Chen
利用磁力显微镜对磁场作用下制备的镍丝磁畴进行了实验研究。直径约为250 nm的镍丝具有单畴结构，而直径为2 μ m的镍丝具有独特的核壳圆柱畴结构。有人建议，这种新颖的畴结构的形成，因为在形成的导线和强烈依赖于导线的直径的磁场的存在。
An experimental study of the magnetic domains of nickel wires prepared under magnetic fields was carried out by using magnetic force microscopy. Nickel wires with a diameter of approximately 250 nm had a single-domain structure, while unique core-shell cylindrical domain was found in 2-μm-diameter wires. It is suggested that this novel domain structure was formed because of the presence of a magnetic field during the formation of wires and strongly depended on the diameter of the wires.