MONTE-CARLO SIMULATIONS OF MONATOMIC STEPS DYNAMICS ON SI(100)-(2X1)

By means of Monte Carlo simulations the frozen pattern of a B-type ste p edge in the Si(100)-(2 x 1) surface is simulated. Sets of two dimers are attached and detached from the step according to the number of ne arest and next-nearest neighbors. Average kink length, average kink se paration and correlation length from experiments and modeling are pres ented in order to check the quality of our results. Experimental resul ts are well reproduced by using measured experimental rates. The chara cteristics of the resulting step profile are also analyzed as a functi on of the step width. (C) 1997 Elsevier Science B.V.