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<div class="moz-cite-prefix">On 15/11/2020 21:26, Paolo Giannozzi
wrote:<br>
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<div>CASTEP uses norm-conserving pseudopotentials only, if I
remember correctly, so the cutoff on the charge density
(ecutrho) can be set to ecutrho=4*ecutwfc.<br>
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Not very improtant for QE, but for the record they have ultrasoft -
Chris Pickard coded those in the late '90s, and they are the
default:<br>
<p><a class="moz-txt-link-freetext" href="http://www.castep.org/CASTEP/FAQPseudopotentials">http://www.castep.org/CASTEP/FAQPseudopotentials</a></p>
<p>nicola<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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