Microphase separation in two dimensional suspensions of self-propelled spheres and dumbbells

Abstract

We use numerical simulations to study the phase behavior of self-propelled spherical and dumbbellar particles interacting via micro-phase separation inducing potentials. Our results indicate that under the appropriate conditions, it is possible to drive the formation of two new active states; a spinning cluster crystal, i.e. an ordered mesoscopic phase having finite size spinning crystallites as lattice sites, and a fluid of living clusters, i.e. a two dimensional fluid where each "particle" is a finite size living cluster. We discuss the dynamics of these phases and suggest ways of extending their stability under a wide range of active forces.

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• Active dumbbells: dynamics and morphology in the coexisting region
• Dynamics of active particles with translational and rotational inertia
• Effective interactions between inclusions in an active bath
• Glassy swirls of active dumbbells
• Designing, Synthesizing and Modeling Active Fluids
• Active particles with polar alignment in ring-shaped confinement
• Dewetting and Spreading Transitions for Active Matter on Random Pinning Substrates
• Finite-Size Scaling Study of Aging during Coarsening in Non-Conserved Ising Model: The case of zero temperature quench
• Confinement-induced alternating interactions between inclusions in an active fluid
• Orientational order and morphology of clusters of self-assembled Janus swimmers
• Synchronized Rotations of Active Particles on Chemical Substrates
• Transverse Self-Propulsion Enhances the Aggregation of Active Dumbbells
• Morphology, Polarization Patterns, Compression, and Entropy Production in Phase-Separating Active Dumbbell Systems