<DIV>Dear all:</DIV>
<DIV> <TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体>I'm doing Volume Optimization of a supercell, (there is 32 atoms, and </FONT></SPAN></TT><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体>the total k point is 125) I select the volume variations of -7, -4, 0, </FONT></SPAN></TT><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体>4, and 7%, everything is ok. While after the Volume ptimization, I plot </FONT></SPAN></TT><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体>Energy vs. volume curve, it is not smooth at all. Have you </FONT></SPAN></TT><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体>experienced this, and can you give me any advice? Any comment is
welcome.</FONT></SPAN></TT></FONT></SPAN></TT></DIV>
<DIV><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"></SPAN></TT></FONT></SPAN></TT> </DIV>
<DIV><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt">Best regards</SPAN></TT></FONT></SPAN></TT></DIV><p><br><hr size=1><b>Do You Yahoo!?</b><br>
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