2 research outputs found
Active cluster crystals
We study the appearance and properties of cluster crystals (solids in which
the unit cell is occupied by a cluster of particles) in a two-dimensional
system of self-propelled active Brownian particles with repulsive interactions.
Self-propulsion deforms the clusters by depleting particle density inside, and
for large speeds it melts the crystal. Continuous field descriptions at several
levels of approximation allow to identify the relevant physical mechanisms
Active cluster crystals
We study the appearance and properties of cluster crystals (solids in which the unit cell is occupied by a cluster of particles) in a two-dimensional system of self-propelled active Brownian particles with repulsive interactions. Self-propulsion deforms the clusters by depleting particle density inside, and for large speeds it melts the crystal. Continuous field descriptions at several levels of approximation allow us to identify the relevant physical mechanisms.We acknowledge financial support from grants LAOP, CTM2015-66407-P (AEI/FEDER, EU) and ESOTECOS, FIS2015-63628-C2-1-R (AEI/FEDER, EU).Peer reviewe