<div dir="ltr">Dear Bruna,<br><br> I would suggest reducing mixing_beta even more, around 0.05, and also adding smearing. I understand that your system is an oxide however, as far as I know, smearing can improve convergence. Actually I'm working on a metallic system with 4 elements, 108 atoms and it converges before 100 steps with a scf accuracy of 1d-6 by using mixing_beta=0.05. By the way, why is your ecutrho so large in comparison with ecutwfc?<br> <br>Best regards,<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Em seg., 21 de nov. de 2022 às 16:40, BRUNA NÁDIA NEVES DA SILVA <<a href="mailto:brunaneves@ice.ufjf.br">brunaneves@ice.ufjf.br</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear QE Users,<br><br>I'm trying to run an 'SCF' calculation using the structure below, and the SCF has not converged after +100 iterations.<br>About the atomic positions, I made some adjustments to the chemical bonds and the angles, so I think it's not about a wrong structure. It's also not a PAW-PP issue because I've been working with those PP's for a long time.<br>According to some suggestions in the forum, I put ecutwfc > 50 Ry and the mixing_beta lower than the default values. Unfortunately, changing these variables has not solved this case yet...<br><br>Please can you all help me with this? I appreciate that<br><br>Regards,<br><br>Bruna<br clear="all"><br>-- <br><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><span style="font-family:arial,helvetica,sans-serif"><span style="color:rgb(0,0,0)"><span style="background-color:rgb(243,243,243)"><font size="2"><span>Dra. Bruna Nádia Neves da Silva</span></font></span></span></span></div><div><span style="font-family:arial,helvetica,sans-serif"><span style="color:rgb(0,0,0)"><span style="background-color:rgb(243,243,243)"><font size="2"><span>(ORCID: 0000-0002-8806-5903)<br></span></font></span></span></span></div><div dir="ltr"><span style="font-family:arial,helvetica,sans-serif"><span style="color:rgb(0,0,0)"><span style="background-color:rgb(243,243,243)"><font size="2"><span><i>Grupo de Físico-Química de Sólidos e Interfaces</i></span></font></span><i><font size="2"><span><br>
<a href="http://www.ufjf.br/gfqsi" target="_blank">www.ufjf.br/gfqsi</a><br>
Universidade Federal de Juiz de Fora<br>
CEP 36036-330 Juiz de Fora - MG -Brasil</span></font></i></span></span></div></div></div></div></div></div></div>
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