Huge broadening of the crystal-fluid interface for sedimenting colloids
arXiv:1107.2853 · doi:10.1209/0295-5075/95/38004
Abstract
For sedimenting colloidal hard spheres, the propagation and broadening of the crystal-fluid interface is studied by Brownian dynamics computer simulations of an initially homogeneous sample. Two different types of interface broadenings are observed: the first occurs during growth and is correlated with the interface velocity, the second is concomitant with the splitting of the crystal-fluid interface into the crystal-amorphous and amorphous-liquid interfaces. The latter width is strongly peaked as a function of the gravitational driving strength with a huge amplitude relative to its equilibrium counterpart.
15 pages, 6 figures, in press
References in corpus (4)
- Non-equilibrium sedimentation of colloids on the particle scale
- Novel zone formation due to interplay between sedimentation and phase ordering
- Shrinking stacking fault through glide of the Shockley partial dislocation in hard-sphere crystal under gravity
- Monte Carlo simulation of growth of hard-sphere crystals on a square pattern