5 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…
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…
Skyrmion soliton motion on periodic substrates by atomistic and particle based simulations
J. C. B. Souza, N. P. Vizarim, C. J. O. Reichhardt +2
We compare the dynamical behavior of magnetic skyrmions interacting with square and triangular defect arrays just above commensuration using both an atomistic model and a particle-…
Directional Locking and the Influence of Obstacle Density on Skyrmion Dynamics in Triangular and Honeycomb Arrays
N. P. Vizarim, J. C. Bellizotti Souza, C. Reichhardt +2
We numerically examine a single skyrmion dynamics under the influence of triangular and honeycomb obstacle arrays at zero temperature. The skyrmion Hall angle , that is the…