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MA: Fachverband Magnetismus

MA 41: Poster III

MA 41.40: Poster

Donnerstag, 20. März 2025, 15:00–17:30, P3

Thiele model computer simulations of magnetic skyrmions — •Anna Endres, Simon M. Fröhlich, Jan Rothörl, Maarten A. Brems, Raphael Gruber, Leonie-C. Dany, Tobias Sparmann, Mathias Kläui, and Peter Virnau — Institute of Physics, Johannes Gutenberg University Mainz, Germany

Magnetic skyrmions can be approximated as rigid particles in 2D in the framework of the Thiele model [1]. This coarse-grained approach in principle enables simulations of hundreds or even thousands of skyrmions on experimentally relevant time and length scales [2]. Skyrmion interactions and pinning landscapes can be inferred directly from corresponding experiments [3][4]. Recently, we have also developed methods to match time and force scales of simulations with experiments, enabling quantitative and predictive simulations. In this poster we summarize our results and provide details on our modelling approach [5].
[1] A. A. Thiele, Phys. Rev. Lett. 30, 230 (1973)
[2] J. Zázvorka et al., Adv. Funct. Mater. 30, 2004037 (2020)
[3] Y. Ge et al., Commun. Phys. 6, 30 (2023)
[4] R. Gruber et al., Nat. Commun. 13, 3144 (2022)
[5] M. A. Brems et al., in preparation

Keywords: Skyrmions; Computer simulation; Thiele equation; Skyrmion interaction; Pinning