Gænice: A general model for magnon band structure of artificial spin ices

Alatteili, Ghanem; Martinez, Victoria; Roxburgh, Alison; Gartside, Jack C.; Heinonen, Olle G.; Gliga, Sebastian; Iacocca, Ezio

doi:10.1016/j.jmmm.2023.171603

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2024

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Cited by 3 publications

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“…The critical interactions in these artificial lattices occur at the vertices, and under certain conditions, these interactions can give rise to frustration [4][5][6]. Because of their design flexibility and tunable complexity, these systems have garnered interest for use as magnonic crystals, where the freedom of placement of nanomagnets and their susceptibility to magnetic fields yield reconfigurable magnon bands [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Modelling nanomagnet vertex dynamics through Coulomb charges

Slöetjes,

Grassi,

Kapaklis

2024

J. Phys.: Condens. Matter

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We investigate the magnetization dynamics in nanomagnet vertices often found in artificial spin ices. Our analysis involves creating a simplified model that depicts edge magnetization using magnetic charges. We utilize the model to explore the energy landscape, its associated curvatures, and the fundamental modes. Our study uncovers specific magnonic regimes and transitions between magnetization states, marked by zero-modes, which can be understood within the framework of Landau theory. To verify our model, we compare it with micromagnetic simulations, demonstrating a noteworthy agreement.

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