phys.ubbcluj.ro/~zneda
manuscript (pdf file)
presentation at IUVISTA'48 (pdf file)
motion of phase-boundaries
(1.2MB avi movie)
formation of a monolayer
(2MB avi movie)
time-evolution of the two-component system (Eab=0.06) (9MB avi movie)
time-evolution of the two-component system (Eab=0.1) (6.8 MB avi movie)
time-evolution of the two-component system (Eab=0.03) (5.3 MB avi movie)

Babes-Bolyai University
Department of Theoretical Physics

str. Kogalniceanu 1, RO-400084
Romania
Phone: (40)-264-405300 int 5156
Fax: (40) 264 591906
E-mail: zneda@phys.ubbcluj.ro


Abstract...

Two-component submonolayer growth on triangular lattice is qualitatively studied by kinetic Monte Carlo techniques. The hopping barrier governing surface diffusion of the atoms is estimated with an improved formula and using realistic pair interaction potentials. Realistic degrees of freedoms enhancing the surface diffusion of atoms are also introduced. The main advantages of the presented technique are the reduced number of free parameters and the clear diffusion activated mechanism for the segregation of different types of atoms. The potential of this method is exemplified by reproducing :

  1. vacancy and stacking fault related phase-boundary creation and dynamics;
  2. a special co-deposition and segregation process where the segregated atoms of the second component surrounds the islands formed by the first type of atoms.

This page last updated on April 14, 2007