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Skyrmion propagation along curved racetracks

Carvalho-Santos, V. L. ; Castro, M. A. ; Salazar-Aravena, D. ; Laroze, D. ; Corona, R. M. ; Allende, S. ; Altbir, D.

Applied physics letters, 2021-04, Vol.118 (17) [Periódico revisado por pares]

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Título:
Skyrmion propagation along curved racetracks
Autor: Carvalho-Santos, V. L. ; Castro, M. A. ; Salazar-Aravena, D. ; Laroze, D. ; Corona, R. M. ; Allende, S. ; Altbir, D.
Assuntos: Curvature ; Hypothetical particles ; Magnetism ; Particle theory ; Propagation ; Racetracks
É parte de: Applied physics letters, 2021-04, Vol.118 (17)
Descrição: The interplay between curvature and magnetization is a cornerstone in magnetism. Thus, in this work, we address the role of curvature on the propagation of magnetic skyrmions along a curved race track. Using a micromagnetic approach and simulations, we observed the creation of a curvature-induced force (CIF) that acts on the skyrmion while traveling along the track. We also show that curvature can stop the skyrmion if the current density is below a critical value. Above this limit, the skyrmion goes through the defect, a direct consequence of the CIF. Our results allow a better definition of the electric current needed for moving skyrmions along curved tracks.
Editor: Melville: American Institute of Physics
Idioma: Inglês

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