<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><br>Dear All<br>I am working on ZnSe and ZnTe. I want to check the electronic and mechanical behaviour as the structure changes from ZnSe to ZnTe in zinc blende phase using ibrav=1 4 Zn and 2 Se and 2Se atoms.. Upto two defects mean 4 Zn atoms 2 Se 2 Te the bandstrcuture is write both valace band and conduction bands appears but when I replace 3rd and Se with Te the only bands due to Zn are appears but due to Se and Te Not appears. The results with <br><br>Zn 65.409 Zn.pz-van_ak.UPF <br> Te 127.60 Te_pz-bhs_UPF <br>Se 78.960 Se_pz-bhs_UPF <br><br>are well But When I use <br><br>Zn 65.409 Zn.pw91-van_ak.UPF <br> Te 127.60 Te.pw91-dn-rrkjus.UPF<br> Se 78.960 Se.pw91-n-rrkjus.UPF<br><br><br>Only Bands due to Zn appears and
for other Se and Te not appears. Would any body helps.<br><br>Regards <br>Muhammad Zafar<br>
PhD Scholar<br>
Department of Physics<br>
The Islamia University of Bahawalpur,Pakistan</td></tr></table>