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초록

We study a restricted solid-on-solid model with a defect in the middle of the substrate. The defect site is selected with a probability P which is smaller than the selection probabilities of the other sites. A facetting transition is observed as a function of P. For P < Pc, the defect distorts the whole surface area, and the surface becomes a facet. For P > Pc, the strength of the defect is weak, so the height di erence correlation function shows a power-law behavior (no facetting). The transition happens at Pc 0:87.

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