Effects of dipolar interactions on magnetic properties of Co nanowire arrays

Magnetic properties and magnetization processes of Co nanowire arrays with various packing densities are investigated by means of object-oriented micromagnetic framework（OOMMF） software package with finite difference micromagnetic simulations. The packing density of nanowires is changed with the dia...

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Published inChinese physics B Vol. 26; no. 11; pp. 481 - 485
Main Author 李洪健;岳明;吴琼;彭懿;李玉卿;刘卫强;张东涛;张久兴
Format Journal Article
LanguageEnglish
Published 01.11.2017
Subjects
偶极相互作用
反转机制
堆积密度
有限差分
磁化强度
磁性
纳米线阵列
面向对象
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Summary:Magnetic properties and magnetization processes of Co nanowire arrays with various packing densities are investigated by means of object-oriented micromagnetic framework（OOMMF） software package with finite difference micromagnetic simulations. The packing density of nanowires is changed with the diameter, number of nanowires and center-to-center spacing between the wires. The magnetization reversal mechanism and squareness of the hysteresis loops of the nanowire arrays are very sensitive to the packing density of nanowires. Clear steps and plateaux on the demagnetization are visible,which turns out that dipolar interactions among the wires have a significant influence on switching field.
Bibliography:Hong-Jian Li, MingYue, Qiong Wu, Yi Peng, Yu-Qing Li, Wei-Qiang Liu, Dong-Tao Zhang, Jiu-Xing Zhang（ College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China）
Magnetic properties and magnetization processes of Co nanowire arrays with various packing densities are investigated by means of object-oriented micromagnetic framework（OOMMF） software package with finite difference micromagnetic simulations. The packing density of nanowires is changed with the diameter, number of nanowires and center-to-center spacing between the wires. The magnetization reversal mechanism and squareness of the hysteresis loops of the nanowire arrays are very sensitive to the packing density of nanowires. Clear steps and plateaux on the demagnetization are visible,which turns out that dipolar interactions among the wires have a significant influence on switching field.
11-5639/O4
micromagnetic simulations cobalt nanowires magnetization reversal mechanism magnetic properties
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/26/11/117503