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MA: Fachverband Magnetismus

MA 53: Skyrmions IV

MA 53.2: Talk

Friday, March 22, 2024, 09:45–10:00, EB 301

Skyrmion Ordering in Geometric Confinements — •Raphael Gruber, Jan Rothörl, Simon Fröhlich, Fabian Kammerbauer, Elizabeth Martín Jefremovas, Peter Virnau, and Mathias Kläui — Institut für Physik, Johannes-Gutenberg Universität Mainz, 55099 Mainz, Germany

Magnetic skyrmions are chiral, quasi-particle spin textures that are considered as promising candidates for data storage, logic and non-conventional computing devices [1]. Furthermore, dense arrangements of skyrmions in thin films allow us to observe 2D phase behavior [2], which significantly differs from 3D systems. In confined geometries, we identify how the patterned structures significantly impact the ordering behavior of the skyrmions. We analyze the characteristic lattice behavior in our system and show how random diffusion and the pinning landscape [3] contribute to the features and capabilities of our system in the context of phase observations and the design of nanodevices.

[1] Zázvorka et al., Nat. Nanotechnol. 14, 658-661 (2019) [2] Zázvorka et al., Adv. Funct. Mater. 30, 2004037 (2020). [3] Gruber et al., Nat. Commun. 13, 3144 (2022).

Keywords: skyrmions; lattices; pinning; diffusion