Magnetization dynamics and reversal mechanism of Fe filled Ni_(80)Fe_(20) antidot nanostructures

摘要

We investigate the magnetization dynamics and reversal mechanism of Fe filled Ni_(80)Fe_(20) antidot nanostructures. The mutual magnetostatic coupling between the two ferromagnetic nanostructures leads to a significant modification to the magnetization reversal mechanism and ferromagnetic resonance mode profiles when compared with reference Fe dots and Ni_(80)Fe_(20) antidot array. Our experimental results are in qualitative agreement with both the static and dynamic micromagnetic simulations.