Anisotropic Magnetization in Arrays of Coupled Ni Nanowires
LI Tao, YANG Shao-Guang, HUANG Li-Sheng, GU Ben-Xi, DU You-Wei
National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093
Anisotropic Magnetization in Arrays of Coupled Ni Nanowires
LI Tao;YANG Shao-Guang;HUANG Li-Sheng;GU Ben-Xi;DU You-Wei
National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093
关键词 ：
75.30.Gw ,
81.07.Bc ,
02.60.Jh
Abstract ： Arrays of Ni nanowires with different wire diameters were prepared by electrodepositing the corresponding material into cylindrical pores of anodic alumina templates. A transition of the easy magnetization direction has been observed from the wire axis to the transverse direction when the wire diameter increases. It is analytically obtained that this phenomenon is mainly originated from the competition of shape anisotropy and the magnetostatic coupling among the Ni wires. Based on dipolar interaction model, numerical calculation is performed to study the interaction among the nanowires, and the result is in agreement with the experimental data.
Key words ：
75.30.Gw
81.07.Bc
02.60.Jh
出版日期: 2004-04-01
:
75.30.Gw
(Magnetic anisotropy)
81.07.Bc
(Nanocrystalline materials)
02.60.Jh
(Numerical differentiation and integration)
引用本文:
LI Tao;YANG Shao-Guang;HUANG Li-Sheng;GU Ben-Xi;DU You-Wei. Anisotropic Magnetization in Arrays of Coupled Ni Nanowires[J]. 中国物理快报, 2004, 21(4): 729-732.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I4/729
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2004, Vol. 21 
