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MA: Fachverband Magnetismus

MA 15: Magnetism Poster A

MA 15.87: Poster

Dienstag, 2. April 2019, 10:00–13:00, Poster E

A multiscale approach for magnetic skyrmion simulations — •Thomas Brian Winkler¹, Andrea de Lucia^1,2, Kai Litzius^1,2,3, Oleg Tretiakov⁴, Benjamin Krüger¹, and Mathias Kläui^1,2 — ¹Johannes Gutenberg Universtät Mainz, — ²Graduate School of Excellence - Material Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany — ³Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany — ⁴Institute for Material Research, Tohoku University, Sendai 980-8577 Sendai

Simulations of magnetization dynamics in a multiscale Environment enable a rapid evaluation of the Landau-Lifshitz-Gilbert equation in a mesoscopic samples. This approach [1] combines the necessary nanoscopic accuracy in areas where such precision is required. The normal micromagnetic solving routine of the micromagnum software package [2] has been expanded to include an accurate Heisenberg model in areas with strongly varying spin structures. The model is applied to study for instance the (thermal) stability of skyrmions [3]. [1] A. de Lucia et al., Phys. Rev. B 94, 184415(2016), [2] URL: http://micromagnum.informatik.uni-hamburg.de/, with additional modules for DMI and SOT from our Group, [3] A. de Lucia et al., Phys. Rev. B 96, 020405(R) (2017)