Following our previously developed twin-spin model description of the equilibrium properties of the O/W(110) system we study its collective diffusion by means of a Monte Carlo dynamics. It is shown that the collective diffusion coefficient for our model has a different density dependence than this following from other models known in the subject literature. The essential feature of the model, responsible for its different dynamics, are the state dependent interactions. Further assumptions concerning interaction dependent barriers make our results comparable to the experimental data.
Phys. Rev. B vol. 67, 155406-1-7 (2003) Magdalena A. Zaluska-Kotur, Stanislaw Krukowski, Lukasz A. Turski
Subscribe to:
Posts (Atom)
