Spin-wave Resonance in Arrays of Nanoscale Synthetic-antiferromagnets
arXiv:2303.01919 · doi:10.1109/NAP55339.2022.9934337
Abstract
The study concerns dynamics of standing spin waves in arrays of sub-100 nm elliptic synthetic-antiferromagnet (SAF) nanodisks. We performed a detailed ferromagnetic resonance analysis in conjunction with micromagnetic modeling to find out several prominent traits of such systems. One broad line is shown to be the sole resonant response for a SAF of the considered sizes. We demonstrate that this mode is degenerated, and its excitation map resembles a superposition of in-center and edge-type oscillations. We also show how this hybrid excitation leads to almost twofold enhancement in the shape-induced anisotropy of the mode.
arXiv comment3 pages, 1 figure, submitted to 2022 IEEE 12th International Conference Nanomaterials: Applications & Properties (NAP)
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