Many thanks for your suggestion which helps me a lot. By the way, does your cp2k group welcome visiting student?<div><br /></div><div>Best regards,</div><div>Zhangsheng Shi<br /><br /></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">在2023年7月5日星期三 UTC+8 16:03:06<Marcella Iannuzzi> 写道:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Dear Janson <div><br></div><div>As usual, guessing what is going wrong is hard with little information.</div><div>Magnetic systems are always difficult to deal with. </div><div>Anyway, I would suggest some changes in the input:</div><div>- Remove RELAX_MULTIPLICITY 0.1 it is not effective with smearing</div><div>- Use full XYZ periodicity. If the slab is not symmetric in z, use the surface dipole correction. The latter is meaningless with XY periodicity</div><div>- Increase the number of MAX_SCF and remove the OUTER_SCF. The latter is useless with diagonalization. </div><div>- Reduce the ALPHA of MIXING. Higher smearing temperature and more ADDED_MOS could also help. </div><div>- Use broken symmetry or the magnetisation keyword in KIND to prepare a better initial guess </div><div><br></div><div> Regards</div><div>Marcella<br><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Wednesday, July 5, 2023 at 9:27:25 AM UTC+2 Janson Shi wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Dear sir,<div><br></div><div>I have recently studied the morphology of Ag cluster on FeP 211 surface. I have succeeded to optimize the FeP primitive cell with magnetic setting. However, when I tried to optimize the FeP 211 slab, the SCF can not be converged. The relevant files are attached, and hope you guys provide some ideas to solve the issues. </div><div><br></div><div>Since I will do the AIMD calculations for the Ag cluster on the FeP 211 surface, the convergence of FeP slab is necessary.</div><div><br></div><div>Many thanks for your help.</div><div><br></div><div>Best regards,</div><div>Janson Shi</div></blockquote></div></blockquote></div>
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