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    <p>Hummm ... Here are many options ... choose the one you like ;)</p>
    <p>1/ You consider the importance to have hybrid functional to
      properly describe the atomic structure. If not, optimize using
      regular DFT and then estimate the property of interest with hybrid
      functional using to optimized structure in regular DFT. <br>
    </p>
    <p>2/ You really want to optimize the geometry in hybrid because
      your system requires such a level of accuracy: <br>
    </p>
    <p>2.a. you implement the optimization using hybrid functional in
      WIEN2k and all the community will be happy of such a contribution</p>
    <p>2.b. you use a plane-wave code (the one you like) and you
      optimize in hybrid. Then you use this optimized structure in
      WIEN2k to simulate a specific property or to do an accurate
      analysis. <br>
    </p>
    <p>Regards,</p>
    <p>Xavier<br>
    </p>
    <div class="moz-cite-prefix">Le 21/11/2019 à 16:41, djamel slamnia a
      écrit :<br>
    </div>
    <blockquote type="cite"
      cite="mid:1614439631.6198930.1574350898769@mail.yahoo.com">
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      <div class="ydp8efba5cbyahoo-style-wrap"
        style="font-family:Helvetica Neue, Helvetica, Arial,
        sans-serif;font-size:13px;">
        <div dir="ltr" data-setdir="false">so what  i have to do  <span>now
            ???  tha<span>nks i<span>n adva<span>nce</span></span></span></span></div>
        <div><br>
        </div>
      </div>
      <div id="yahoo_quoted_4666644022" class="yahoo_quoted">
        <div style="font-family:'Helvetica Neue', Helvetica, Arial,
          sans-serif;font-size:13px;color:#26282a;">
          <div> Le mercredi 20 novembre 2019 à 15:42:59 UTC+1, Tran,
            Fabien <a class="moz-txt-link-rfc2396E" href="mailto:fabien.tran@tuwien.ac.at"><fabien.tran@tuwien.ac.at></a> a écrit : </div>
          <div><br>
          </div>
          <div><br>
          </div>
          <div>
            <div id="yiv2129707634">
              <style type="text/css">#yiv2129707634 #yiv2129707634 --P{margin-top:0;margin-bottom:0;}#yiv2129707634 </style>
              <div dir="ltr">
                <p>If you are trying to do an optimization of atom
                  positions, then you can not do it with hybrid
                  functional (-hf option) because the forces are not
                  implemented for hybrid functionals.<br clear="none">
                </p>
                <p><br clear="none">
                </p>
                <div class="yiv2129707634yqt8498696799"
                  id="yiv2129707634yqt02669">
                  <div style="color:rgb(33, 33, 33);">
                    <hr tabindex="-1"
                      style="display:inline-block;width:98%;">
                    <div dir="ltr" id="yiv2129707634divRplyFwdMsg"><font
                        style="font-size:11pt;" face="Calibri,
                        sans-serif" color="#000000"><b>From:</b> Wien
                        <a class="moz-txt-link-rfc2396E" href="mailto:wien-bounces@zeus.theochem.tuwien.ac.at"><wien-bounces@zeus.theochem.tuwien.ac.at></a>
                        on behalf of djamel slamnia
                        <a class="moz-txt-link-rfc2396E" href="mailto:djamel4009@yahoo.fr"><djamel4009@yahoo.fr></a><br clear="none">
                        <b>Sent:</b> Wednesday, November 20, 2019 2:41
                        PM<br clear="none">
                        <b>To:</b> A Mailing list for WIEN2k users<br
                          clear="none">
                        <b>Subject:</b> Re: [Wien] Beween non spin
                        polarized and spin polarized calculations</font>
                      <div> </div>
                    </div>
                    <div>
                      <div
                        class="yiv2129707634ydp9f771b1fyahoo-style-wrap"
                        style="font-family:Helvetica Neue, Helvetica,
                        Arial, sans-serif;font-size:13px;">
                        <div dir="ltr">i'm  using hf hybrid functional i
                          tryed to do minimisation MSR1 but i cant get
                          convergence </div>
                        <div dir="ltr">what is the solution in your
                          opinion ??   thank in advance </div>
                        <div><br clear="none">
                        </div>
                      </div>
                      <div class="yiv2129707634yahoo_quoted"
                        id="yiv2129707634yahoo_quoted_4688040149">
                        <div style="font-family:'Helvetica Neue',
                          Helvetica, Arial,
                          sans-serif;font-size:13px;color:#26282a;">
                          <div>Le dimanche 17 novembre 2019 à 18:36:12
                            UTC+1, Abderrahmane Reggad
                            <a class="moz-txt-link-rfc2396E" href="mailto:abde.reggad@gmail.com"><abde.reggad@gmail.com></a> a écrit :
                          </div>
                          <div><br clear="none">
                          </div>
                          <div><br clear="none">
                          </div>
                          <div>
                            <div id="yiv2129707634">
                              <div dir="ltr">
                                <div class="yiv2129707634gmail_default"
                                  style="font-family:comic sans ms,
                                  sans-serif;font-size:small;">
                                  Thanks xavier for the interesting
                                  article and useful information</div>
                                <div class="yiv2129707634gmail_default"
                                  style="font-family:comic sans ms,
                                  sans-serif;font-size:small;">
                                  <br clear="none">
                                </div>
                                <div class="yiv2129707634gmail_default"
                                  style="font-family:comic sans ms,
                                  sans-serif;font-size:small;">
                                  My new question is : what's the
                                  relationship between the unpaired
                                  electrons and the orbital
                                  contribution. I think that the
                                  unpaired electrons are always related
                                  to the spin contribution.</div>
                                <div class="yiv2129707634gmail_default"
                                  style="font-family:comic sans ms,
                                  sans-serif;font-size:small;">
                                  <br clear="none">
                                </div>
                                <div class="yiv2129707634gmail_default"
                                  style="font-family:comic sans ms,
                                  sans-serif;font-size:small;">
                                  Best regards<br clear="all">
                                </div>
                                <br clear="none">
                                -- <br clear="none">
                                <div
                                  class="yiv2129707634gmail_signature"
                                  dir="ltr">
                                  <div dir="ltr">
                                    <div>
                                      <div dir="ltr">
                                        <div>
                                          <div dir="ltr">
                                            <div>
                                              <div><span
                                                  style="color:rgb(92,92,92);font-family:Arial,
                                                  Helvetica, Sans Sans
                                                  UI STIXGeneral,
                                                  Unicode
sans-serif;font-size:13px;font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);display:inline;float:none;">Dr.
                                                  Abderrahmane Reggad<br
                                                    clear="none">
                                                  Engineering Physics
                                                  Laboratory</span></div>
                                              <span
                                                style="color:rgb(92,92,92);font-family:Arial,
                                                Helvetica, Sans Sans UI
                                                STIXGeneral, Unicode
sans-serif;font-size:13px;font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);display:inline;float:none;">Faculty
                                                of Material Sciences,
                                                Ibn Khaldoun University,
                                                Tiaret, 14000, Algeria</span></div>
                                            Tel: +213(0)561861963 -
                                            Algeria<br clear="none">
                                          </div>
                                        </div>
                                      </div>
                                    </div>
                                  </div>
                                </div>
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                            </div>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
------------------------
Institut des Sciences Chimiques de Rennes (ISCR)
Univ Rennes - CNRS - UMR6226, France
<a class="moz-txt-link-freetext" href="https://iscr.univ-rennes1.fr/cti/people/permanent-staff/rocquefelte-xavier">https://iscr.univ-rennes1.fr/cti/people/permanent-staff/rocquefelte-xavier</a>
------------------------
ICAMM2019 : VASP Workshop and International Materials Modelling Conf
June 26-July 3 2019, Rennes France
icamm2019.sciencesconf.org  : Registration opening soon, see you there! </pre>
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