<div dir="ltr">Dear Singh,<div><br></div><div> I would not fix Z since you could have a kind of zig-zag bonding in your sheet (I don't actually know how your structure is...), instead I would fix just one atom in the space of the supercell, by putting 0 0 0 in front of its coordinates (see if_pos(1), if_pos(2), if_pos(3) in the manual of pw.x).</div><div><br></div><div>Best regards,</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Em seg., 19 de set. de 2022 às 10:08, naval singh via users <<a href="mailto:users@lists.quantum-espresso.org">users@lists.quantum-espresso.org</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:16px"><div dir="ltr">Hello all,</div><div dir="ltr">i am working on 2 D sheet and i was confused about one thing that whether one should fix the z -coordinate doing relaxation(not vc-relaxation ) for calculation , and in which conditions do we fix the positions except for slab model</div></div></div>_______________________________________________<br>
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