<div dir="ltr"><div>Quick (maybe) and dirty solution: If you know which real-space grid is used in the SG15 PP, generate with QE ("atomic" code) a similar PP with the same grid, borrow the <PP_PSWFC> section
from the UPF file<br><br></div>Paolo</div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Oct 17, 2016 at 7:34 AM, Christoph Wolf(신소재공학과) <span dir="ltr"><<a href="mailto:chwolf@postech.ac.kr" target="_blank">chwolf@postech.ac.kr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Dear all!<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I have recently started using Harmann’s SG15 optimized norm-conserving PPs (<a href="http://www.quantum-simulation.org/potentials/sg15_oncv/" target="_blank">http://www.quantum-<wbr>simulation.org/potentials/<wbr>sg15_oncv/</a>).
<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">They give very nice “out of the box” band structures and lattice constants whilst using small cutoffs. I have to use a NC PP because of further processing using YAMBO which currently only supports NC.
<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The only drawback is the empty<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><PP_PSWFC><u></u><u></u></p>
<p class="MsoNormal"></PP_PSWFC><u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">section in the PP files leading to projwfc.x echoing “Cannot project on zero atomic wavefunctions!” (self-explanatory). Projected wavefunctions give, however, nice plots for the VBM and CBM in terms of the involved orbitals.
<u></u><u></u></p>
<p class="MsoNormal">I wonder if it is possible (and if someone has experience with..) re-building the PP including this section. The program for building the PP is available from
<a href="http://www.mat-simresearch.com/oncvpsp-3.2.3.tar.gz" target="_blank">http://www.mat-simresearch.<wbr>com/oncvpsp-3.2.3.tar.gz</a> but I am not sure what to look for in the manual. An annotated example is delivered with the program (and attached); maybe someone can give
it a quick look?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Your help and advice is, as always, very much appreciated!<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Yours,<u></u><u></u></p>
<p class="MsoNormal">Chris<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Christoph Wolf<u></u><u></u></p>
<p class="MsoNormal">POSTECH University, Pohang, South Korea<u></u><u></u></p>
<p class="MsoNormal">Department of Materials Science and Engineering<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
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