Kinetic one-dimensional Ising system on a narrow Si(001)SB terrace

Abstract

The time resolving dynamical Monte Carlo simulations(DMCS) on a narrow Si(001)SB terrace are performed with the parameters obtained from the first-principles procedures. It is shown that the two-body time-correlation functions of the system correspond to those of the ideal kinetic one-dimensional Ising system. The dynamical feature of the flip-flop motion of dimers in the system is well described by the ideal kinetic one-dimensional Ising system. The one-dimensional kinetic transition rates on the system are obtained. The one-dimensional fluctuation of the system is enough slow to be observed by STM at realistic temperature.