Dynamics of cluster formation in driven dipolar colloids dispersed on a monolayer

Abstract

We report computer simulation results on the cluster formation of dipolar colloidal particles driven by a rotating external field in a quasi-two-dimensional setup. We focus on the interplay between permanent dipolar and hydrodynamic interactions and its influence on the dynamic behavior of the particles. This includes their individual as well as their collective motion. To investigate these characteristics, we employ Brownian dynamics simulations of a finite system with and without hydrodynamic interactions. Our results indicate that particularly the translation-rotation coupling from the hydrodynamic interactions has a profound impact on the clustering behavior.

15 pages, 7 figures

References in corpus (6)

• Synchronization of rotating helices by hydrodynamic interactions
• Influence of hydrodynamic interactions on lane formation in oppositely charged driven colloids
• Hydrodynamic coupling of two rotating spheres trapped in harmonic potentials
• Simple models for two-dimensional tunable colloidal crystals in rotating ac electric fields
• Non-equilibrium condensation and coarsening of field-driven dipolar colloids
• Running faster together: huge speed up of thermal ratchets due to hydrodynamic coupling

Cited by in corpus (5)

• Forces and torques on rigid inclusions in an elastic environment: resulting matrix-mediated interactions, displacements, and rotations
• The structure and dynamics of self-assembling colloidal monolayers in oscillating magnetic fields
• Single-file and normal diffusion of magnetic colloids in modulated channels
• How does a thermal binary crystal break under shear?
• Topological edge flows drive macroscopic re-organization in magnetic colloids