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<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Cambria','serif'; BACKGROUND: white; COLOR: black; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-fareast-font-family: 宋体; mso-hansi-theme-font: major-latin; mso-bidi-font-family: Arial; mso-themecolor: text1; mso-font-kerning: 0pt" lang=EN-US>Dear all,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Cambria','serif'; BACKGROUND: white; COLOR: black; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-fareast-font-family: 宋体; mso-hansi-theme-font: major-latin; mso-bidi-font-family: Arial; mso-themecolor: text1; mso-font-kerning: 0pt" lang=EN-US><o:p> </o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Cambria','serif'; BACKGROUND: white; COLOR: black; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-fareast-font-family: 宋体; mso-hansi-theme-font: major-latin; mso-bidi-font-family: Arial; mso-themecolor: text1; mso-font-kerning: 0pt" lang=EN-US>I am studying the charged defects in semiconductor with GGA-PBE functional. It is known that the average potentials of the charged defect calculation and that of the unperturbed host need to be aligned. My question is </SPAN><SPAN style="FONT-FAMILY: 'Cambria','serif'; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin" lang=EN-US>how to align the potential of the defect supercell with Q.E. codes, or how to obtain the the electrostatic potential as a function of the distance in the supercell.</SPAN><SPAN style="FONT-FAMILY: 'Cambria','serif'; BACKGROUND: white; COLOR: black; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-fareast-font-family: 宋体; mso-hansi-theme-font: major-latin; mso-bidi-font-family: Arial; mso-themecolor: text1; mso-font-kerning: 0pt" lang=EN-US><o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Cambria','serif'; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin" lang=EN-US><o:p> </o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Cambria','serif'; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin" lang=EN-US>Dose any one has the experience with potential alignment in defect formation calculation with Q.E. codes? Any suggestions or comments are appreciated.<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Cambria','serif'; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin" lang=EN-US><o:p> </o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Cambria','serif'; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin" lang=EN-US>Evan<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Cambria','serif'; FONT-SIZE: 12pt; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin" lang=EN-US>USC, China<o:p></o:p></SPAN></P></DIV><br>