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We numerically examine a two-dimensional system of repulsively interactingparticles with dynamics that are governed by both a damping term and a Magnusterm. The magnitude of the Magnus term has one value for half of the particlesand a different value for the other half of the particles. In the absence of adriving force, the particles form a triangular lattice, while when a drivingforce is applied, we find that there is a critical drive above which aMagnus-induced disordering transition can occur even if the difference in theMagnus term between the two particle species is as small as one percent. Thetransition arises due to the different Hall angles of the two species, whichcauses their motion to decouple at the critical drive. At higher drives, thedisordered state can undergo both species and density phase separation into adensity modulated stripe that is oriented perpendicular to the drivingdirection. We observe several additional phases that occur as a function ofdrive and Magnus force disparity, including a variety of density modulateddiagonal laned phases. In general we find a much richer variety of statescompared to systems of oppositely driven overdamped Yukawa particles. Wediscuss the implications of our work for skyrmion systems, where we predictthat even for small skyrmion dispersities, a drive-induced disorderingtransition can occur along with clustering phases and pattern forming states.

Disordering, Clustering, and Laning Transitions in Particle Systems with Dispersion in the Magnus Term