I also think that if you take care of your energy cutoffs it may be possible to use both norm-conserving and ultrasoft pseudo-potentials in one calculation. But it is strange why do you insist to do that. Because in the pseudo-potential library of Quantum-Espresso there are several ultrasoft pseudo-potentials of carbon with various exchange-correlations. Hence why you do not use an ultrasoft pseudo-potential for carbon element.<br>

<br>Regards<br clear="all"><div>======================================<br>Seyed Javad  Hashemifar<br>Department of Physics, Isfahan University of Technology<br>84156-83111 Isfahan, Iran<br>Tel: +98 311 391 2375     Fax:+98 311 3912376<br>

Email:  <a href="mailto:hashemifar@cc.iut.ac.ir" target="_blank">hashemifar@cc.iut.ac.ir</a><br>Group Homepage:      <a href="http://cmsgroup.iut.ac.ir" target="_blank">http://cmsgroup.iut.ac.ir</a><br>Personal Homepage:  <a href="http://hashemifar.iut.ac.ir" target="_blank">http://hashemifar.iut.ac.ir</a><br>

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<br><br><div class="gmail_quote">On Sun, Jan 27, 2013 at 10:22 AM, mohnish pandey <span dir="ltr"><<a href="mailto:mohnish.iitk@gmail.com" target="_blank">mohnish.iitk@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

Yea you can mix USPP with NC. See the FAQ <a href="http://www.quantum-espresso.org/?page_id=356#2.3" target="_blank">http://www.quantum-espresso.org/?page_id=356#2.3</a><br><br><div class="gmail_quote"><div class="im">On Sun, Jan 27, 2013 at 12:56 PM, Banafshe Noori <span dir="ltr"><<a href="mailto:b_noori88@yahoo.com" target="_blank">b_noori88@yahoo.com</a>></span> wrote:<br>


</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div><div style="font-size:14pt;font-family:Courier New,courier,monaco,monospace,sans-serif">

<div dir="ltr">Hi</div><div dir="ltr">
<br></div><div style="font-style:normal;font-size:18.6667px;background-color:transparent;font-family:Courier New,courier,monaco,monospace,sans-serif" dir="ltr">I am using with LDA approximation . the pesduopotential of normconserving for carbon is applied.</div>


<div style="font-style:normal;font-size:18.6667px;background-color:transparent;font-family:Courier New,courier,monaco,monospace,sans-serif" dir="ltr"><br></div><div style="font-style:normal;font-size:18.6667px;background-color:transparent;font-family:Courier New,courier,monaco,monospace,sans-serif" dir="ltr">


 can i  use a potential of type ultrasoft for a doped element for example (Cd).</div><div style="font-style:normal;font-size:18.6667px;background-color:transparent;font-family:Courier New,courier,monaco,monospace,sans-serif" dir="ltr">


<br></div><div style="font-style:normal;font-size:18.6667px;background-color:transparent;font-family:Courier New,courier,monaco,monospace,sans-serif" dir="ltr"><br></div><div style="font-style:normal;font-size:18.6667px;background-color:transparent;font-family:Courier New,courier,monaco,monospace,sans-serif" dir="ltr">


<br></div><div style="font-style:normal;font-size:18.6667px;background-color:transparent;font-family:Courier New,courier,monaco,monospace,sans-serif" dir="ltr">   <br></div></div></div><br></div></div><div class="im">_______________________________________________<br>



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-- <br>Regards,<br>MOHNISH,<br>-----------------------------------------------------------------<br>
Mohnish Pandey,<br>PhD Student,<br>Center for Atomic Scale Materials Design,<br>Department of Physics,<br>Technical University of Denmark<br><div>-----------------------------------------------------------------</div>
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