<div dir="ltr"><div><span style="font-size:13px">>One thing about norm-conserving calculation is that the code gives warming about some orbitals has zero norm. I don't know if that could be of concern. </span><br></div><div><br></div>I have no experience with gipaw calculations.<div>If gipaw doesn't use the atomic wave functions included in pseudopotentials (PPs), the warning above has no effect.</div><div>This warning tells us that some atomic wave functions in PP has zero norm.</div><div><br></div><div>Sincerely,</div><div><br></div><div>Hyungjun Lee</div><div>EPFL</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Sep 20, 2017 at 6:50 PM, Jia Chen <span dir="ltr"><<a href="mailto:jiachenchem@gmail.com" target="_blank">jiachenchem@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div>Dear All,<br><br></div>I am working on calculating nmr parameters with gipaw code. I have two settings: one with norm-conserving gipaw pesudopotentials which has some semi-core states, and the other with ultra-soft gipaw pseudopotentials. Electronic structure eigenvalues from pwscf look similar, and chemical-shift are not far away from each other. The issue is quadrupolar coupling, for Co, norm-conserving calculation gives 0.5MHz and ultra-soft gives 1.5MHz. It seems to me a significant discrepancy. I don't know what caused the inconsistency, and which one is more reliable. I appreciate any insight on this problem.<br><br></div>One thing about norm-conserving calculation is that the code gives warming about some orbitals has zero norm. I don't know if that could be of concern. <br><br></div>Cheers<span class="HOEnZb"><font color="#888888"><br></font></span></div><span class="HOEnZb"><font color="#888888">Jia<br></font></span></div>
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