Growth model with disaggregation of islands having an odd number of particles

K. MAZZITELLO; H.O. MÁRTIN; C.M. ALDAO

PHYSICAL REVIEW E - STATISTICAL PHYSICS, PLASMAS, FLUIDS AND RELATED INTERDISCIPLINARY TOPICS

Año: 2004 vol. 69 p. 41604 - 41604

1063-651X

A simple model of deposition of particles and growth of point islands in a two-dimensional substrate is introduced and studied. The detachment of particles from islands withh an odd number of particles can occur with a probability P. The power-law scalings of the island, monomer, and odd island densities are analytically obtained and veryfied by Monte Carlo simulations. The universality class of the model depends on P, and the island density exponent  changes from 1/3 (for P=0) to 0 (for P>0).