Daniel Nitsch, Claus Schumacher, Bernd Zettel
We study surface structures and growth processes of clusters of material based on a modified Eden growth model. We find that the resulting surface can be classified using a parameter k (ratio of surface / sqrt(substance)). The effect of the interaction q between particles on the surface structure is not continuous, but k(q) exhibits threshold behaviour. Essentially, there are three classes of surfaces: (a) compact surfaces, (b) fragmented surfaces and (c) very fragmented surfaces.
 (a) |
 (b) |
 (c) |
| Clusters with a substance of 3000 particles. Interaction strengths decrease from (a) to (c). | ||
