Effects of diffusional anisotropy and substrate inhomogeneity on lengths distributions scaling of dimerized chains

J.L. IGUAIN, H.O. MÁRTIN, Y C.M. ALDAO

PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS

Año: 1999 vol. 59 p. 4596 - 4599

0163-1829

The scaling of the island-size distributions for a model in which adatoms aggregate as dimerized chains is examined. In particular, we present the effects of diffusional anisotropy and the presence of inequivalent sites. Our results show that the exponents agree with those for simpler models. We also found that an interesting anomalous result appears for the case of unidimensional diffusion.