<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:#0b5394"><br></div><div class="gmail_quote"><div dir="ltr"><div style="font-family:tahoma,sans-serif;font-size:small;color:#0b5394"><div><font color="#000000"><span style="font-family:Arial,Helvetica,sans-serif"><font face="arial, sans-serif">Dear User and Developer,</font></span><br></font></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><font face="arial, sans-serif" color="#000000">I am using VASP + Wannier90<span class="gmail_default" style="font-family:tahoma,sans-serif">.</span><br>I try to regenerate the band <span class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(11,83,148)"></span>structure(BS) using wannier90.<span class="gmail_default" style="font-family:tahoma,sans-serif"> The disentanglement reached the convergence and <span>wannier</span> functions are real</span></font></div><div dir="ltr"><font face="arial, sans-serif" color="#000000"><span class="gmail_default" style="font-family:tahoma,sans-serif"><br></span></font></div><div dir="ltr"><font face="arial, sans-serif" color="#000000"><span class="gmail_default" style="font-family:tahoma,sans-serif">A </span>good agreement with DFT results<span class="gmail_default" style="font-family:tahoma,sans-serif"> is seen</span>. However, the bands are shifted by 0.2eV in the complete range of the k path. here I have attached the BS plot.<br>I used " grep 'E-fermi' OUTCAR' to get the Fermi level from the vasp SCF calculation to shift the bands from <span>wannier</span>.<br>What factor causes such a shift?<br>here is the <span>wannier</span>.win setting<br><span class="gmail_default" style="font-family:tahoma,sans-serif"></span><br>num_bands = 64<br>num_wann = 9<br>num_iter = 100<br><br>dis_win_min = -10<br>dis_win_max = 1<br>dis_froz_min = -10<br>dis_froz_max = -3<br>dis_num_iter = 200<br>##dis_mix_ratio = 1.d0<br>###fermi_energy = -3.1056<br><br>##projection<br>Begin Projections<br> Se : p<br> S : p<br> Te : p<br>End Projections<br><br>guiding_centres = .true.<br><br>#Bandstructure plot<br>bands_plot = true<br>begin kpoint_path<br> G 0.0000 0.0000 0.0000 X 0.5000 0.0000 0.0000<br> X 0.5000 0.0000 0.0000 S 0.5000 0.5000 0.0000<br> S 0.5000 0.5000 0.0000 Y 0.0000 0.5000 0.0000<br> Y 0.0000 0.5000 0.0000 G 0.0000 0.0000 0.0000<br>end kpoint_path<br>bands_num_points 50<br><br>begin unit_cell_cart<br>....<br>end unit_cell_cart<br><br>begin atoms_cart<br>...<br>end atoms_cart<br><br>mp_grid = 10 12 1<br><br>begin points<br>...<br>end <span class="gmail_default" style="font-family:tahoma,sans-serif">k</span>point<br><br><span class="gmail_default">Also</span><span class="gmail_default" style="font-family:tahoma,sans-serif"> attached is the <span>wannier</span>.wout file and comparison between DFT - <span>Wannier</span> band structures for your reference </span></font></div><div dir="ltr"><font face="arial, sans-serif" color="#000000"><span class="gmail_default" style="font-family:tahoma,sans-serif"><br></span></font></div><div><font face="arial, sans-serif" color="#000000"><span class="gmail_default" style="font-family:tahoma,sans-serif">Any comments on this issue are highly appreciated </span></font></div><div dir="ltr"><font face="arial, sans-serif" color="#000000"><span class="gmail_default" style="font-family:tahoma,sans-serif"><br></span></font></div><div dir="ltr"><font face="arial, sans-serif" style="color:rgb(34,34,34)"><font color="#000000"><span class="gmail_default" style="font-family:tahoma,sans-serif"></span>Thank you</font><br style="color:rgb(68,68,68)"></font><br></div></div></div></div></div></div></div></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><font color="#0000ff"><span style="font-family:arial,sans-serif"><span class="gmail_default" style="font-family:tahoma,sans-serif;font-size:small;color:rgb(11,83,148)"></span></span></font><span style="font-family:arial,sans-serif;color:rgb(0,0,255)">---</span></div><div><font color="#0000ff"><span style="font-family:arial,sans-serif">Best regards</span></font></div><div><div><font color="#0000ff"><span style="font-family:arial,sans-serif"><span style="font-family:tahoma,sans-serif"></span>Muthu Vallinayagam</span><br></font></div><div><font face="arial, sans-serif" color="#0000ff"><br></font></div><div><div><font color="#0000ff" face="arial, sans-serif">Fakultät 2 : Chemie und Physik,</font></div><div><font color="#0000ff" face="arial, sans-serif">Institut für Experimentelle Physik<span style="font-family:tahoma,sans-serif">,</span></font></div><div><font color="#0000ff" face="arial, sans-serif"><span style="font-family:tahoma,sans-serif">Technische Universität Bergakademie Freiberg</span></font></div><div><font face="arial, sans-serif" color="#0000ff"><span class="gmail_default" style="font-family:tahoma,sans-serif">Germany</span></font></div></div></div></div></div></div></div></div></div></div></div>
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