<div>Dear pwscf users,</div>
<div> I have a problem about the band structure. When I calculate the band structure of an kind of semiconductor, I found an inconsistent problem between using conventional cell and primitive cell. The conventional cell shows the direct band gap ,while the primitive one shows </div>
<div>indirect band gap. My Question: what kind of band gap of this semiconductor is. Any suggestion is appreciated.</div>
<div> Thank you in advance!<br clear="all"><br>-- <br>Y. C. Cheng<br>Department of Phyics<br>Nanjing University<br>Nanjing 210093<br>P. R. China<br>Tel: 86-25-83592907<br>Email: <a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:yccheng.nju@gmail.com" target="_blank">yccheng.nju@gmail.com</a> </div>