<div dir="ltr"><div><div>Dear Al,<br></div>I am new to wannier tool an trying to calculate GW band structure of monolayer GaSe (<span style="background-color:rgb(204,0,0)">Total of four atoms<span style="background-color:rgb(252,229,205)"><span style=""></span></span></span>) as given in Fig. 1(f) (<a href="https://journals.aps.org/prb/pdf/10.1103/PhysRevB.94.24540">https://journals.aps.org/prb/pdf/10.1103/PhysRevB.94.24540</a>7). I used the different wannier90.win files as:<br><br></div>1. <br><div><br> num_wann = 64 ! set to NBANDS by VASP<br>use_bloch_phases = T<br>num_iter = 0<b><span style="color:rgb(255,0,0)"> (if num_iter > 0 the band structure is extremely weired)</span></b><br><br clear="all"><div><div><span style="color:rgb(0,0,255)">And its output is attached 1.eps (CBM is shifted to M point)</span><br><br>2.<br>num_wann=14<br>num_bands=14<br>exclude_bands: 1-14, 29-64<br>Begin Projections<br>Ga:sp3<br>Se:p<br>End Projections<br>num_iter = 0<b><span style="color:rgb(255,0,0)"> (if num_iter > 0 the band structure is extremely weired)</span></b><br><br><span style="color:rgb(0,0,255)">And its output is attached 2.eps (not in agreement)</span><br></div><div><br></div><div>-- <br><div class="gmail_signature"><div dir="ltr"><div>Kind Regards</div><div>Sajjad </div><br></div><div>PS: GGA band structure is also attached herewith.<br><br><br></div></div>
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