<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><br>Dear All<br>I make 72 atom supercell to study the effect of vacancy on defect formation energy. If I remove one atom do I run vc-relax or relax calculation only? I mean is this concentratio(1/72=0.013) high that affect the lattice constant also or not?<br>thanks a lot<br> <br>Ali Kazempour<br>
Physics department, Isfahan University of Technology<br>
84156 Isfahan, Iran. Tel-1: +98 311 391 3733<br>
Fax: +98 311 391 2376 Tel-2: +98 311 391 2375</td></tr></table><br>