<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:'times new roman', 'new york', times, serif;font-size:12pt;color:#000000;"><div></div><div><br> Dear Wien2k Users</div><div><br></div><div>I am using last version of wien2k and I to study the (111) surface of Cu and Ni. I make a structure file using octave, with 21 layers of atoms and 20 layers of vacuum. My question is: Do I need to make changes to this case.struct for init_lapw like we do for supercells by renaming, deleting, ... ? or adding vaccume is enough for changing the symmetry. </div><div><br></div><div>best regards,</div><div>Monazam</div><div><br></div><div><br></div><div style="position:fixed"></div>
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