Asymmetry in the propagation of vortex domain wall artificial skyrmion 
composite system

Eilmsteiner, D; Wang, Xi-guang; Chotorlishvili, L; Paischer, S; Hoffmann, M; Buczek, P; Ernst, Arthur

doi:10.1088/1361-648X/abee39

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Asymmetry in the propagation of vortex domain wall artificial skyrmion composite system

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Ernst, Arthur
Max Planck Institute of Microstructure Physics, Max Planck Society;

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https://doi.org/10.1088/1361-648X/abee39
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Zitation

Eilmsteiner, D., Wang, X.-g., Chotorlishvili, L., Paischer, S., Hoffmann, M., Buczek, P., et al. (2021). Asymmetry in the propagation of vortex domain wall artificial skyrmion composite system. Journal of Physics: Condensed Matter, 33(18): 185803. doi:10.1088/1361-648X/abee39.

Zitierlink: https://hdl.handle.net/21.11116/0000-0008-9658-C

Zusammenfassung

We studied the propagation of an artificial skyrmion coupled to the vortex domain wall (VDW). We discovered the following effect: depending on the propagation's direction, the dynamics of the coupled skyrmion VDW can be faster than the isolated VDW's velocity. The reason for such behavior is the structural distortion that occurs in the coupled system. We interpret the numerical results in terms of the modified Thiele's equation. In particular, increasing the Thiele's equation counteractive coefficient leads to the perfect fitting with the micromagnetic simulation results.