Abstract:A surface which consists concentric circular monoatomic steps in two dimensions and below its roughening temperature is discussed. Repulsive and attractive interactions between steps on the surface are considered. It is supposed that repulsive and attractive interactions vary as −2 and −1 respectively. Here indicates the terrace width between monoatomic steps. The solution of diffusion equation is achieved in twodimension by using polar coordinates. While the initial surface evolves, it is supposed that the lo… Show more
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