9 papers
Skyrmion behavior in attractive-repulsive square array of pinning centers
L. Basseto, N. P. Vizarim, J. C. Bellizotti Souza +1
We investigate the driven dynamics of a single skyrmion in a square lattice of mixed pinning sites, where attractive and repulsive defects coexist using a particle-based model. The…
Many-body skyrmion interactions in helimagnets
N. P. Vizarim, J. C. Bellizotti Souza, Raà M. Menezes +3
Many-body interactions strongly influence the structure, stability, and dynamics of condensed-matter systems, from atomic lattices to interacting quasi-particles such as supercondu…
Diode Effect for Skyrmions Interacting with Linear Protrusion Defects
J. C. Bellizotti Souza, C. J. O. Reichhardt, C. Reichhardt +2
We simulate collectively interacting skyrmions in a channel with periodic asymmetry, and find a strong diode effect for the skyrmion flow. There is also an asymmetry in the skyrmio…
Ordered and Disordered Skyrmion States on a Square Substrate
J. C. Bellizotti Souza, C. J. O. Reichhardt, C. Reichhardt +2
We examine the ordering of skyrmions interacting with a square substrate created from a modulation of anisotropy using atomistic simulations. We consider fillings of {\it f} = 1.5,…
Sliding Dynamics of Skyrmion Molecular Crystals
J. C. Bellizotti Souza, C. J. O. Reichhardt, C. Reichhardt +2
Using both atomistic and particle-based simulations, we investigate the current-driven dynamics of skyrmions on two-dimensional periodic substrates when there are multiple skyrmion…
Skyrmion-Skyrmionium Phase Separation and Laning Transitions via Spin-Orbit Torque Currents
N. P. Vizarim, J. C. Bellizotti Souza, C. J. O. Reichhardt +3
Many driven binary systems can exhibit laning transitions when the two species have different mobilities, such as colloidal particles with opposite charges in electric fields. Anot…