Spin-wave Resonance in Arrays of Nanoscale Synthetic-antiferromagnets

Vladyslav Borynskyi; Dmytro Polishchuk; Iryna Sharai; Andrii Melnyk; Anatolii Kravets; Alexandr Tovstolytkin; Vladislav Korenivski

doi:10.1109/NAP55339.2022.9934337

Spin-wave Resonance in Arrays of Nanoscale Synthetic-antiferromagnets

Mesoscale and Nanoscale Physics 2023-03-06 v1 Materials Science Applied Physics

Authors: Vladyslav Borynskyi , Dmytro Polishchuk , Iryna Sharai , Andrii Melnyk , Anatolii Kravets , Alexandr Tovstolytkin , Vladislav Korenivski

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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.

Keywords

spin-wave resonance synthetic antiferromagnet nanodisk arrays ferromagnetic resonance micromagnetic modeling shape-induced anisotropy

Cite

@article{arxiv.2303.01919,
  title  = {Spin-wave Resonance in Arrays of Nanoscale Synthetic-antiferromagnets},
  author = {Vladyslav Borynskyi and Dmytro Polishchuk and Iryna Sharai and Andrii Melnyk and Anatolii Kravets and Alexandr Tovstolytkin and Vladislav Korenivski},
  journal= {arXiv preprint arXiv:2303.01919},
  year   = {2023}
}

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3 pages, 1 figure, submitted to 2022 IEEE 12th International Conference Nanomaterials: Applications & Properties (NAP)

Spin-wave Resonance in Arrays of Nanoscale Synthetic-antiferromagnets

Abstract

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