<DIV>Dear Stefaan:</DIV>
<DIV> you are right, thanks. There is one more question: to <TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial Unicode MS'; LETTER-SPACING: 0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">compare the work function <TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体>WF = (v0c or v5c) - :FER. can i just do a quick calcution,i.e.a few K-point(for example only 4 points for ten atoms)? I wonder how many k-points should i use to get the accurate <TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; LETTER-SPACING: 0pt"><FONT face=新宋体>WF quickly?</FONT></SPAN></TT></FONT></SPAN></TT></SPAN></TT></DIV>
<DIV><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial Unicode MS'; LETTER-SPACING: 0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><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></SPAN></TT> </DIV>
<DIV><TT><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial Unicode MS'; LETTER-SPACING: 0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><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">regards</SPAN></TT></FONT></SPAN></TT></SPAN></TT></DIV><p><br><hr size=1><b>Do You Yahoo!?</b><br>
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