Magnetization reversal in cobalt nanowires with combined magneto-crystalline and shape anisotropies

被引：20
作者：
Li, Hongjian [1 ]
Wu, Qiong [1 ]
Yue, Ming [1 ]
Peng, Yi [1 ]
Li, Yuqing [1 ]
Liang, Jingming [1 ]
Wang, Dajun [1 ]
Zhang, Jiuxing [1 ]
机构：
[1] Beijing Univ Technol, Minist Educ China, Key Lab Adv Funct Mat, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 481卷
基金：
中国国家自然科学基金;
关键词：
Co nanowires; Coercivity; Magneto-crystalline easy axis deviation; Magnetization reversal; ANGULAR-DEPENDENCE; COERCIVITY; ARRAYS; 3D; NANOSTRUCTURES; TEMPERATURE; MAGNETS;
D O I：
10.1016/j.jmmm.2019.02.094
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present study, we present new experimental and calculated results of Co nanowires synthesized by the solvothermal method. The coercivity of 8.7 kOe and the energy product of 31.4 MGOe were obtained for wires of average diameters of 20 nm and average lengths of 200 nm. The experimental and numerical results of nanowires were discussed. Micromagnetic simulations were conducted to study the dependence of the magnetic properties on the nanowire aspect ratios, diameters, and various magneto-crystalline easy axis deviation angles from the long axis of Co nanowires. The calculation with a magneto-crystalline easy axis deviations from long axis show a better accordance with experimental results. The state graphs for reversal modes versus the magnetocrystalline easy axis deviation angles in Co nanowires were presented.
引用
收藏
页码：104 / 110
页数：7
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