Effect of the transient mobility in two-dimensional continuum deposition

BELARDINELLI R. E.; LINARES D. H.; PEREYRA V. D.

JOURNAL OF CHEMICAL PHYSICS

American Institute of Physics

Año: 1999 vol. 111 p. 1265 - 1272

0021-9606

By using Monte Carlo MC techniques, we study the effect of the transient mobility on the irreversible deposition of spherical particles on two-dimensional substrates. The mobility is introduced by the capability of the incoming particles to roll on the flat surface a distance R before coming to rest or, in the case of falling on top of an already adsorbed particle, roll over until it contacts the surface. Depending on the deposition mechanism three models of irreversible adsorption with transient mobility are proposed. The kinetics of the process are studied by the time behavior of coverage r (t). The asymptotic regime r (`)2r (t) appears as specially interesting and behaves as a function of the degrees of freedom in the motion of the depositing particles going from power law to exponential dependence. The jamming state is characterized through the behavior of the jamming coverage r~`! and the correlation function g(r).