Dear All,<br><br> I did test calculations on DCC correction implemented in CVS version. <br>I came to problems when i examine the results of electrostatic potential. Would you please give me some hints ?<br>My test calculation is a CNT (10,10) system, and the setting for <br>
DCC correction is <br> which_compensation ='dcc',<br> ecutcoarse = 100.0,<br> n_charge_compensation= 5,<br> nlev = 4,<br> whichbc(1)= 0, whichbc(2)=0, <br> whichbc(3)=1,<br>
But the final fermi energy i obtained is -3.99 eV, which is not consistent with <br>previous report on workfunction of CNTs(about 4.6 eV ). <br><br>Best,<br>Hai-Ping<br><br clear="all"><br>-- <br>Hai-Ping Lan <br>Department of Electronics ,<br>
Peking University , Bejing, 100871<br><a href="mailto:lanhaiping@gmail.com">lanhaiping@gmail.com</a>, <a href="mailto:hplan@pku.edu.cn">hplan@pku.edu.cn</a><br>