<div>Dear Ari,</div>
<div> </div>
<div>Thank you for the reply. I tried to access the GIPAW pseudo-potentials but it looks like "The page cannot be found".</div>
<div> </div>
<div>A more specific question about the pseudo-potentials: Do I need to do all the calculations (scf, geometry optimisation of my system, hyperfine structure, g tensors) with the GIPAW pp, or could it be done in 2 steps scf and geom optimisation with a set of pp and hyperfine structure + g tensor calculations with GIPAW pp. My guess is that I would have to use the GIPAW pp for the entire process which means that I really need to generate my own GIPAW pp (since I see there there are a limited no. of GIPAW pp available).</div>
<div> </div>
<div>I am really determined to use the code (since one of my committee members think that is so much better that another code that I have been using).:) I'll let you know how things progress.</div>
<div> </div>
<div>Cheers,</div>
<div>Sanda<br><br></div>
<div class="gmail_quote">On Fri, Feb 27, 2009 at 12:30 AM, Ari P Seitsonen <span dir="ltr"><<a href="mailto:ari.p.seitsonen@iki.fi">ari.p.seitsonen@iki.fi</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br>Dear Sanda,<br><br> We do not yet have extensive experience on the implementation, but it should work, in particular for solids (the GIPAW method, needed for the g tensor, was designed in particular for this purpose). The computational cost of hyper-fine constants is vanishing after you have obtained the optimised wave functions (and geometry, if you did optimise it), it is simple post-processing tool. The calculation of the g tensor is more time-consuming, maybe a about ten times the calculation of the self-consistent electronic structure.<br>
<br> If you do use the code, please let us know about your experiences, so that we can further develop the code. And please do not forget that you need the pseudo potentials with the GIPAW reconstruction data; some are given at<br>
<a href="http://www.impmc.jussieu.fr/~software/gipaw/" target="_blank">http://www.impmc.jussieu.fr/~software/gipaw/</a><br>together with (very basic) information on how to generate the projectors for the reconstruction.<br>
<br> Greetings from Paris,<br><br> apsi
<div>
<div></div>
<div class="Wj3C7c"><br><br><br>On Thu, 26 Feb 2009, Sanda Botis wrote:<br><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hi everyone,<br><br>I would like to know if anyone has experience working on paramagnetic<br>defects in solids and using QE. I know that the 4.0 version is supposed to<br>
be able to calculate g-tensors and hyperfine constants but I am not sure how<br>well it works for solids and how computationally demanding this type of<br>calculations are.<br><br>Maybe you can give me a few suggestions based on your experience with QE.<br>
<br>Thank you,<br>Sanda<br><br></blockquote><br></div></div><font color="#888888">-- <br>-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-<br> Ari P Seitsonen / <a href="mailto:Ari.P.Seitsonen@iki.fi" target="_blank">Ari.P.Seitsonen@iki.fi</a> / <a href="http://www.iki.fi/~apsi/" target="_blank">http://www.iki.fi/~apsi/</a><br>
IMPMC, CNRS & Université Pierre et Marie Curie<br> Tel: +33-1-4427 7542, Fax: +33-1-4427 3785, GSM: +33-6-6736 3820</font><br>_______________________________________________<br>Pw_forum mailing list<br><a href="mailto:Pw_forum@pwscf.org">Pw_forum@pwscf.org</a><br>
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