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<font color="#000000" face="Times" class=""><span class="" style="font-size: 14px; white-space: pre-wrap;">Dear All,
</span></font><font color="#000000" face="Times" class=""><span class="" style="font-size: 14px;"><span class="" style="white-space: pre-wrap;">I am trying to generate a Wannier90 tight-binding model for Sr2FeO4 using Wannier90 interfaced with ABINIT</span></span></font><font color="#000000" face="Times" class=""><span class="" style="font-size: 14px;"><span class="" style="white-space: pre-wrap;">. The
overall </span><span class="" style="white-space: pre-wrap;">behavior</span><span class="" style="white-space: pre-wrap;"> of the bands produced by Wannier90 and ABINIT agree with one another, but there are some discrepancies almost everywhere, especially
around the Fermi energy. I have tried to investigate the effect of varying different parameters, such as : size of the KPOINT mesh, number of iterations, energy window (with and without a frozen window, excluding bands,..), and the set of projections (either
only on Iron d-orbitals, or on Iron d-orbitals plus Oxygen p-orbitals). In the disentangled case of Iron d-orbitals plus Oxygen p-orbitals, the mapping is expected to be exactly on top of the DFT band structure. I performed the calculations with two
</span></span></font><span class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-size: 14px;"><span class="" style="font-family: Times; white-space: pre-wrap;">pseudopotentials,</span><font color="#000000" face="Times" class=""><span class="" style="white-space: pre-wrap;">
Norm-Conserving (NC) and </span><span class="" style="white-space: pre-wrap;">Projector-Augmented Wave (PAW)</span></font><font color="#000000" face="Times" class=""><span class="" style="white-space: pre-wrap;">.
</span><span class="" style="white-space: pre-wrap;">In all the cases, convergence is
</span><span class="" style="white-space: pre-wrap;">achieved</span><span class="" style="white-space: pre-wrap;"> but the disagreement persists.
</span></font></span>
<div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="" style="font-size: 14px;"><font color="#000000" face="Times" class=""><span class="" style="white-space: pre-wrap;">I would appreciate it a lot if anyone could help me improve
my results. The </span><span class="" style="white-space: pre-wrap;">“</span><span class="" style="white-space: pre-wrap;"><a href="http://wannier90.win" class="">wannier90.win</a>" and </span><span class="" style="white-space: pre-wrap;">"wannier90.wout”</span></font> <font color="#000000" face="Times" class=""><span class="" style="white-space: pre-wrap;">files
</span><span class="" style="white-space: pre-wrap;">alongside the band structures in the case of
</span></font><b class="" style="font-family: Times; white-space: pre-wrap;">five</b><span class="" style="font-family: Times; white-space: pre-wrap;"> Iron d-orbitals</span><font color="#000000" face="Times" class=""><span class="" style="white-space: pre-wrap;">
(NC5.PNG) and </span></font><b class="" style="font-family: Times; white-space: pre-wrap;">five</b><font color="#000000" face="Times" class=""><span class="" style="white-space: pre-wrap;"> Iron d-orbitals plus
</span></font><b class="" style="font-family: Times; white-space: pre-wrap;">twelve (4 * 3)</b><span class="" style="font-family: Times; white-space: pre-wrap;"> Oxygen p-orbitals (NC17.PNG) can be found</span> here:</span></div>
<div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="" style="white-space: pre-wrap; font-family: Times; font-size: 14px;"><a href="https://drive.google.com/drive/folders/1WDjjKl22XXsIW7sdPIbWEsz29ZnkMTGO?usp=sharing" class="">https://drive.google.com/drive/folders/1WDjjKl22XXsIW7sdPIbWEsz29ZnkMTGO?usp=sharing</a></span></div>
<div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="" style="white-space: pre-wrap; font-family: Times; font-size: 14px;"><br class="">
</span></div>
<div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="" style="white-space: pre-wrap; font-family: Times; font-size: 14px;">Thank you so much in advance.</span></div>
<div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="" style="white-space: pre-wrap; font-family: Times; font-size: 14px;"><br class="">
</span></div>
<div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="" style="white-space: pre-wrap; font-family: Times; font-size: 14px;">Best Regards,</span></div>
<div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="" style="white-space: pre-wrap; font-family: Times; font-size: 14px;">Mohaddeseh Kazemi-Moridani</span></div>
<div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="" style="white-space: pre-wrap; font-family: Times; font-size: 14px;">Department of Physics</span></div>
<div class="" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span class="" style="white-space: pre-wrap; font-family: Times; font-size: 14px;">Université de Montréal</span></div>
<div class=""><span class="" style="white-space: pre-wrap; font-family: Times; font-size: 14px;"><br class="">
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