双层堆叠纳米环磁特性的研究  

Study on Magnetic Properties of Double Layer Stacked Nanorings

作　　者：黄倩南 何雨洁 范春龙 温昌林 薛宇宸 吴雪婷 陈水源 黄志高 叶晴莹 

机构地区：[1]福建师范大学物理与能源学院,福建 福州 [2]福建省半导体光电材料及其高效转换器件协同创新中心,福建 厦门

出　　处：《应用物理》2023年第5期190-194,共5页Applied Physics

摘　　要：基于蒙特卡洛(MC)方法与快速傅里叶变换微磁学(FFTM)方法,研究了厚度不同钴纳米环的磁化特性。模拟结果表明,纳米环堆叠时,系统的磁化过程存在“双稳态”特征,在磁化翻转过程中出现局部涡旋态,随着厚度的变化,系统的自旋组态出现了更为丰富的过渡态,整体的磁化过程更加复杂。Based on Monte Carlo (MC) method and Fast Fourier transform micromagnetics (FFTM) method, the magnetization characteristics of cobalt nanorings with different thickness were simulated. The simulation results show that the magnetization process of the system is bistable, and the local vortex state appears in the magnetization reversal process. With the change of the thick-ness, the spin configuration of the system appears more abundant transition states, and the overall magnetization process becomes more complex.

关 键 词：蒙特卡洛方法 快速傅里叶变换微磁学方法 纳米环 厚度 

分 类 号：TB3[一般工业技术—材料科学与工程]