Modelling of columnar growth in continuum ballistic deposition

The dynamics of morphological change of the growing film surface during a vertical ballistic deposition is numerically studied by means of a phenomenological model. The model is a phenomenological continuum model, described by a pair of coupled equations of the phase field for a growing film and the density field for ballistic deposited particles. Several computer simulations show that morphological transitions of the growing surface occur on varying phenomenological parameters of the model. Especially, it is found that stable columnar structures are obtained within some ranges of parameters.