Dear Lorenzo,<br><br>Thanks for the clarification.<br><br>Another question, do we need to relax the geometries again with the PAW pseudopotential before doing the spectra calculation or a relaxed geometry obtained using a standard ultrasoft or norm conserving pseudopotential with the same exchange correlation functional is sufficient? <br>
<br>With regards,<br><br>Prasenjit<br><br><div class="gmail_quote">On 18 June 2012 12:20, Lorenzo Paulatto <span dir="ltr"><<a href="mailto:lorenzo.paulatto@impmc.upmc.fr" target="_blank">lorenzo.paulatto@impmc.upmc.fr</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im"><div class="gmail_quote">On Sat, Jun 16, 2012 at 8:00 AM, Prasenjit Ghosh <span dir="ltr"><<a href="mailto:prasenjit.jnc@gmail.com" target="_blank">prasenjit.jnc@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
while calculating the nmr spectra using gipaw, is it necessary to use the paw pseudopotential for all the atoms or is it sufficient if we use the paw pseudopotential for the element for which we want to calculate the spectra?<br>
<br></blockquote><div> </div></div></div>Dear Prasenjit,<div>I'm quite sure that the latter is true, i.e. only for the atoms whom spectra you wish to calculate. However, they do not need to be PAW, but they must include GIPAW data for wavefunction reconstruction. Even if they are PAW, the keyword use_paw_as_gipaw must have been specified at generation time in order to have the reconstruction data stored in the file.<br>
<br clear="all"><div>If you have some PAW dataset without reconstruction data, it is trivial to regenerate them with the data. Even if you don't have the ld1.x input file, all the necessary input variables are in the file's header.</div>
<div><br></div><div>bests</div><span class="HOEnZb"><font color="#888888"><div><br></div>-- <br><div>Lorenzo Paulatto IdR @ IMPMC/CNRS & Université Paris 6</div><div>phone: +33 (0)1 44275 084 / skype: paulatz</div><div>
www: <a href="http://www-int.impmc.upmc.fr/%7Epaulatto/" target="_blank">http://www-int.impmc.upmc.fr/~paulatto/</a></div>
<div>mail: 23-24/4é16 Boîte courrier 115, 4 place Jussieu 75252 Paris Cédex 05</div><br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>PRASENJIT GHOSH,<br>IISER Pune,<br>First floor, Central Tower, Sai Trinity Building<br>Garware Circle, Sutarwadi, Pashan<br>Pune, Maharashtra 411021, India<br><br>Phone: +91 (20) 2590 8203<br>
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