<div dir="auto">Thank very much.<div dir="auto">I will take another look.</div><div dir="auto"><br></div><div dir="auto">Regards.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 20 Aug 2022, 7:37 am , <<a href="mailto:lorenzo.paulatto@cnrs.fr">lorenzo.paulatto@cnrs.fr</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>Dear Kenneth,</div><div dir="auto">Converting from angstroms to Bohr is not very difficult, I'll let you figure it out. You can also use scan_ibrav.x if during the relaxation process the axes have rotated. Kind regardsĀ <br><div class="gmail_extra" dir="auto"><br><div class="gmail_quote">On Aug 20, 2022 01:47, SK <<a href="mailto:ksandinah@st.ug.edu.gh" target="_blank" rel="noreferrer">ksandinah@st.ug.edu.gh</a>> wrote:<br type="attribution"><blockquote style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">Hello All,
<br>
I am a bit new to QE and DFT and need some assistance.
<br>
I know for unit cell coordinates, we either use:
<br>
1. ibrav=0 and then specify cell_parameters OR
<br>
2. ibrav>0 and then specify either celldm(1-6) or COSAB etc.
<br>
My input file currently has ibrav=0 and cell_paramters specified. At the
<br>
start of vc-relax output, a celldm is generated but I believe it is
<br>
unrelaxed.
<br>
After relaxation, I wish to proceed with scf, nscf, bands calculations
<br>
using ibrav>0 (as recommended) and specify celldm in subsequent input
<br>
files.
<br>
My problem is after relaxation, final relaxed coordinates in output file
<br>
are presented in cell_parameters (angstrom) and not celldm as I wish to
<br>
use in subsequent input files. So I am not sure which relaxed
<br>
coordinates to transport to new <a href="http://scf.in" target="_blank" rel="noreferrer">scf.in</a> file.
<br>
Also about using cell2ibrav.x to convert my "cell_parameters (angstrom)"
<br>
to "ibrav and appropriate celldm"; I am a little unsure what to input
<br>
when it gets to this stage:
<br>
Enter alat (or 'x' to skip if axis are in bohr): Because I now seek alat
<br>
and my cell_parameters where in Angstrom.
<br>
Kindly assist me clarify how to go about both methods.
<br>
<br>
Kenneth Sandinah
<br>
MPhil Physics Student
<br>
University of Ghana
<br>
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country and on the free and peaceful scientific, cultural,<br>
and economic cooperation amongst peoples<br>
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