<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1449820684210_10174"><span id="yui_3_16_0_1_1449820684210_10241">I am using 2Dxy is it the choice for fixing only zz coordinate?</span></div> <br><div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Friday, December 11, 2015 1:46 AM, Pascal Boulet <pascal.boulet@univ-amu.fr> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv8065373096"><div>Hello,<div><br clear="none"><div>you can relax the cell in the directions of the slab using keyword cell_do_free.</div><div><br clear="none"></div><div>HTH</div><div>Pascal</div><div><br clear="none"><div><div>Le 11 déc. 2015 à 09:33, Jaret Qi <<a rel="nofollow" shape="rect" ymailto="mailto:jaretqi@yahoo.com" target="_blank" href="mailto:jaretqi@yahoo.com">jaretqi@yahoo.com</a>> a écrit :</div><br clear="none" class="yiv8065373096Apple-interchange-newline"><blockquote type="cite">
</blockquote></div></div></div></div><div><div class="yiv8065373096yqt9774001248" id="yiv8065373096yqt81961"><div><div style="background-color:rgb(255, 255, 255);font-family:HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif;font-size:16px;"><div id="yiv8065373096yui_3_16_0_1_1449820684210_6674">Hello QE users,</div><div dir="ltr" id="yiv8065373096yui_3_16_0_1_1449820684210_6674">I need to add vacuum along the z-direction to study E-field effect using saw-like potential. In this case do I need to do vc-relax or relax will be enough?</div><div dir="ltr" id="yiv8065373096yui_3_16_0_1_1449820684210_6674"><br clear="none"></div><div dir="ltr" id="yiv8065373096yui_3_16_0_1_1449820684210_6674">Thank you in advance,</div><div dir="ltr" id="yiv8065373096yui_3_16_0_1_1449820684210_6674">Jaret</div><div dir="ltr" id="yiv8065373096yui_3_16_0_1_1449820684210_6674">ASU</div></div></div></div>_______________________________________________<br clear="none">Pw_forum mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Pw_forum@pwscf.org" target="_blank" href="mailto:Pw_forum@pwscf.org">Pw_forum@pwscf.org</a><br clear="none">http://pwscf.org/mailman/listinfo/pw_forum<br clear="none"><div>
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