23 citations · 48 across the 17 of their papers we have counts for
8 papers · 1 filter
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, Raí 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…
Topological Transitions, Pinning and Ratchets for Driven Magnetic Hopfions in Nanostructures
J. C. Bellizotti Souza, C. J. O. Reichhardt, C. Reichhardt +3
Using atomistic simulations, we examine the dynamics of three-dimensional magnetic hopfions interacting with an array of line defects or posts as a function of defect spacing, defe…
Skyrmionium Dynamics and Stability on One Dimensional Anisotropy Patterns
J. C. Bellizotti Souza, N. P. Vizarim, C. J. O. Reichhardt +2
We examine a skyrmionium driven over a periodic anisotropy pattern, which consists of disorder free regions and disordered regions. For small defect densities, the skyrmionium flow…