<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hello,<div><br><div>you can relax the cell in the directions of the slab using keyword cell_do_free.</div><div><br></div><div>HTH</div><div>Pascal</div><div><br><div><div>Le 11 déc. 2015 à 09:33, Jaret Qi <<a href="mailto:jaretqi@yahoo.com">jaretqi@yahoo.com</a>> a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"><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="yui_3_16_0_1_1449820684210_6674">Hello QE users,</div><div id="yui_3_16_0_1_1449820684210_6674" dir="ltr">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 id="yui_3_16_0_1_1449820684210_6674" dir="ltr"><br></div><div id="yui_3_16_0_1_1449820684210_6674" dir="ltr">Thank you in advance,</div><div id="yui_3_16_0_1_1449820684210_6674" dir="ltr">Jaret</div><div id="yui_3_16_0_1_1449820684210_6674" dir="ltr">ASU</div></div></div>_______________________________________________<br>Pw_forum mailing list<br><a href="mailto:Pw_forum@pwscf.org">Pw_forum@pwscf.org</a><br>http://pwscf.org/mailman/listinfo/pw_forum</blockquote></div><br><div>
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