<DIV>Dear all:</DIV>
<DIV> In order to simulate the interface between two bulk-like slabs, we must ensure the presence of a bulk-like slab. So I want to know is there a criterion for the presence of a bulk-like slab?</DIV>
<DIV>thanks in advance</DIV>
<DIV>Best regards</DIV><p><br><hr size=1><b>Do You Yahoo!?</b><br>
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