Before revision:  Furthermore, we find that evaporation dominates the growth process when the coefficient of the nonlinear term in the KPZ equation is small, and that  average radius of  interface decreases with time and reaches a minimum but not zero value.
After revision:  Furthermore, we find that evaporation dominates the growth process when the coefficient of the nonlinear term in the KPZ equation is small, and that the average radius of interface decreases with time and reaches a minimum but not zero value.