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    <div class="moz-cite-prefix">Hello Giannozzi,<br>
      <br>
      I changed the pseudopotential to Ni.pbe-n-kjpaw_psl.0.1.UPF and I
      obtained my lattice parameter to be 3.51 Angstroms which
      corresponds better with experimental data of 3.52 A. <br>
      <br>
      <br>
      Thank you very much.<br>
      <br>
      Kind Regards,<br>
      <br>
      <br>
      Elliot<br>
      <br>
      <br>
      -----<br>
      <div id="yui_3_13_0_ym1_8_1386059200249_12"><font
          id="yui_3_13_0_ym1_1_1386059200249_14098" size="1"><span
            id="yui_3_13_0_ym1_1_1386059200249_14114"
            style="font-weight:bold;text-decoration:underline;">Elliot
            Sarpong Menkah</span><br>
          <font id="yui_3_13_0_ym1_1_1386059200249_14101" size="1">Graduate
            Student - Computatio<font
              id="yui_3_13_0_ym1_1_1386059200249_14100" size="1">nal
              Chemistry / Computational Material Science.<br>
              <font id="yui_3_13_0_ym1_1_1386059200249_14099" size="1">Theoretical
                and Computational Chemistry<br>
                Dept. of Chemistry</font><br style="font-style:italic;">
            </font></font><span
            id="yui_3_13_0_ym1_1_1386059200249_14109"
            style="font-style:italic;">Kwame Nkrumah University of
            Science and Technology (KNUST),</span><br
            style="font-style:italic;">
          <span id="yui_3_13_0_ym1_1_1386059200249_14097"
            style="font-style:italic;">Private Mail Bag,</span><br
            style="font-style:italic;">
          <span id="yui_3_13_0_ym1_1_1386059200249_14110"
            style="font-style:italic;">Kumasi,</span><br
            style="font-style:italic;">
          <span style="font-style:italic;">Ghana.</span><br>
          Mobile:+233-243-055-717,+233-202-<font size="1">9</font>2<font
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          <br>
          <br>
          Alt. Email: <a class="moz-txt-link-abbreviated" href="mailto:elliotsmenkah@gmail.com">elliotsmenkah@gmail.com</a></font></div>
      <font size="1"><span class="tab">    </span><span class="tab">   
        </span><span class="tab">    </span></font><span
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          <a class="moz-txt-link-abbreviated" href="mailto:elliotsmenkah@hotmail.com">elliotsmenkah@hotmail.com</a><br>
          <br>
          webpage:
<a class="moz-txt-link-freetext" href="http://archive.knust.edu.gh/pages/sections.php?siteid=chemistry&mid=806&sid=2754">http://archive.knust.edu.gh/pages/sections.php?siteid=chemistry&mid=806&sid=2754</a></font></span><br>
      On 12/03/2013 04:07 PM, Paolo Giannozzi wrote:<br>
    </div>
    <blockquote
      cite="mid:1386086841.12813.8.camel@fe12lx.fisica.uniud.it"
      type="cite">
      <pre wrap="">On Tue, 2013-12-03 at 15:30 +0000, Elliot Menkah wrote:

</pre>
      <blockquote type="cite">
        <pre wrap="">Can you please advice me on which of the various pseudo-potentials 
of Nickel that is a GGA pseudo potential please.
</pre>
      </blockquote>
      <pre wrap="">
you can select a functional from the menu in this page:
  <a class="moz-txt-link-freetext" href="http://www.quantum-espresso.org/pseudopotentials/">http://www.quantum-espresso.org/pseudopotentials/</a>
Or, just look at the file name: GGA pseudopotentials have names 
like Ni.pbe-*.UPF, Ni.pw91-*.UPF, ... Naming convention here:
  <a class="moz-txt-link-freetext" href="http://www.quantum-espresso.org/pseudopotentials/naming-convention/">http://www.quantum-espresso.org/pseudopotentials/naming-convention/</a>
P.
</pre>
    </blockquote>
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