Abstract

Forced oscillations of magnetization of NiFe circular disk in the presence of external longitudinal magnetic field are studied with the aid of micromagnetic simulation and experiments using magnetic resonance force spectroscopy. Main attention is paid to low-frequency resonance related to gyrotropic motion of the core of magnetic vortex. The resonance frequency of the gyromode is significantly shifted when the external magnetic field is applied in the sample plane. Effect of nonuniform magnetic field of the probe on the oscillations of magnetization is discussed.

中文翻译：

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磁涡旋振荡的磁共振力谱

摘要

借助微磁模拟和使用磁共振力谱的实验，研究了在外部纵向磁场存在下NiFe圆盘的磁化强迫振荡。主要关注与磁涡旋芯的回旋运动有关的低频共振。当在样品平面中施加外部磁场时，陀螺仪模式的共振频率发生了显着变化。讨论了探头磁场不均匀对磁化振荡的影响。