<br><br>Dear QE Users,<br><br>I got the following error while used GGA+U for EuO:<br><br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>     from set_hubbard_l : error #         1<br>     pseudopotential not yet inserted<br>
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br><br>     stopping ...<br><br>Inside source file, I have found that "Eu" is mentioned. However, I do not understand <br>the meaning of inserting a pseudopotential. <br>
<br>Thanks in advance for a helpful explanation.  <br><br>With best regards,<br><br>Saha SK <br>R&D Assistant<br>JNCASR<br>Bangalore 560012<br><br>