Surface morphology of ballistic deposition with patchy particles and visibility graph

Abstract

The influence of anisotropic interaction on the morphology of growing clusters formed by patchy particles on 1D substrate has been studied by computer simulations. In this model, the adsorption of the particle occurs only when the ‘sticky patch’ makes contact with the sticky patch of a previously adsorbed particle. When the patch size p of the particle increases, the morphology of the aggregates changes from the closed structure to a chain like pattern and finally leads to compact thin films. Near the transition, the film is highly porous and the surface roughness w(t)∼t. The structural transition is analyzed by visibility algorithm. The nodes observed near the transition are of high degree. The scale free behavior is observed for all the values of p close to transition with different value of scaling exponents that deviates from expected KPZ behavior.