Comparison of experimental and numerical micromagnetic dynamics in coherent precessional switching and modal oscillations
Comparison of experimental and numerical micromagnetic dynamics in coherent precessional switching and modal oscillations
复制标题
DOI：
10.1103/physrevb.65.140404
复制
发表时间：
2002-04-01
影响因子：
3.7
通讯作者：
Freeman, MR
中科院分区：
文献类型：
--
作者：
Hiebert, WK;Ballentine, GE;Freeman, MR
时空分辨实验矢量磁力测量与时域数值微磁模拟相结合，研究薄膜磁性元件中两种基于进动的动态过程。大角度（>180度）、超快磁化矢量运动在实验和模拟之间进行了很好的比较，并构成了对近乎理想的进动切换的直接观察。高频自旋波的产生是通过磁化矢量长度的明显减小来推断的。小角度（
Spatiotemporally resolved experimental vector magnetometry is combined with time-domain numerical micromagnetic simulation to investigate two, precessional-based, dynamic processes in thin-film magnetic elements. Large angle (>180degrees), ultrafast, magnetization vector motions compare well between experiment and simulation and constitute a direct observation of nearly-ideal precessional switching. High-frequency spin-wave generation is inferred by apparent reduction in the magnetization vector length. Small angle (