Existence and stability of skyrmion bags in thin magnetic films

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Skyrmion bags are spin textures of any integer topological degree, realised in thin film micromagnetic simulations and experimentally in liquid crystals. They have been proposed as a new form of magnetic data storage due to their stability with respect to perturbations and the possibility of encoding different values in topologically distinct magnetisation configurations. We simulate skyrmion bags in magnetic thin films having a range of physically realistic material parameters. The results give a range over which stable skyrmion bags may be found in experiment and we extract a relationship to help guide production of these potentially useful quasiparticles.
Original languageEnglish
Article number022413
Number of pages6
JournalApplied Physics Letters
Issue number2
Early online date16 Jan 2020
Publication statusE-pub ahead of print - 16 Jan 2020


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