Regensburg 2022 – wissenschaftliches Programm

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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 30: Skyrmions 3 (joint session MA/KFM)

KFM 30.5: Vortrag

Freitag, 9. September 2022, 10:30–10:45, H37

Non-Abelian Vortices in Magnets — •Filipp Rybakov1 and Olle Eriksson1,21Uppsala University, Sweden — 2Örebro University, Sweden

The non-Abelian (non-commutative) topological states in ordered media may exhibit interesting physics emerging from purely topological arguments [1].

Here we show that non-Abelian vortices also can exist in magnets [2]. We give a topological classification of these vortices and reveal their connection with Abelian topological structures, such as usual vortices, merons, skyrmions. We analyze the potential of non-Abelian magnetic vortices for memory devices and emphasize their advantage, since they provide topological protection of all information, rather than individual bits, as in Abelian cases.

[1] N. D. Mermin, Rev. Mod. Phys. 51, 591 (1979).

[2] F. N. Rybakov and O. Eriksson, arXiv:2205.15264 (2022).

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