<div dir="ltr">I get vc relax,scf, nscf,band,dos with this setting<br><br> &CONTROL<br><br>                 calculation = 'vc-relax' ,<br><br>                restart_mode = 'from_scratch' ,<br><br>                      outdir = '/' ,<br>
<br>                  pseudo_dir = '/' ,<br><br>                     tstress = .true. ,<br><br>                     tprnfor = .true. ,<br><br> /<br><br> &SYSTEM<br><br>                       ibrav = 8,<br><br>
                   celldm(1) = 24.56076867356026 ,<br><br>                   celldm(2) = 0.8010156189889975 ,<br><br>                   celldm(3) = 1.769639147495576 ,<br><br>                         nat = 64,<br><br>                        ntyp = 2,<br>
<br>                     ecutwfc = 90.0 ,<br><br>                     ecutrho = 600.0 ,<br><br>                 occupations = 'smearing' ,<br><br>                     degauss = 0.03 ,<br><br>                    smearing = 'gaussian' ,<br>
<br>            exxdiv_treatment = 'gygi-baldereschi' ,<br><br> /<br><br> &ELECTRONS<br><br>                    conv_thr = 1.D-6 ,<br><br>             diagonalization = 'david' ,<br><br>              diago_full_acc = .TRUE.,<br>
<br> /<br><br> &IONS<br><br>                ion_dynamics = 'bfgs' ,<br><br>           pot_extrapolation = 'second_order' ,<br><br>           wfc_extrapolation = 'second_order' ,<br><br> /<br><br>
 &CELL<br><br>               cell_dynamics = 'bfgs' ,<br><br>                 cell_factor = 2.0 ,<br><br>                 cell_dofree = 'xyz' ,<br><br> /<br><br>ATOMIC_SPECIES<br><br>   Zn   65.38000  Zn.pbe-van.UPF <br>
<br>    O   15.99990  O.pbe-van_ak.UPF <br><br>ATOMIC_POSITIONS angstrom <br><br>   Zn      4.873875000    0.000000000    0.000000000    <br><br>    O      4.873875000    1.991586040    0.000000000    <br><br>   Zn      3.249250000    2.602700000    0.937962530    <br>
<br>    O      3.249250000    4.594286040    0.937962530    <br><br>   Zn      3.249250000    0.000000000    2.813887590    <br><br>    O      3.249250000    1.991586040    2.813887590    <br><br>   Zn      1.624625000    2.602700000    3.751850120    <br>
<br>    O      1.624625000    4.594286040    3.751850120    <br><br>   Zn      1.624625000    0.000000000    0.000000000    <br><br>    O      1.624625000    1.991586040    0.000000000    <br><br>   Zn      0.000000000    2.602700000    0.937962530    <br>
<br>    O      0.000000000    4.594286040    0.937962530    <br><br>   Zn      0.000000000    0.000000000    2.813887590    <br><br>    O      0.000000000    1.991586040    2.813887590    <br><br>   Zn      4.873875000    2.602700000    3.751850120    <br>
<br>    O      4.873875000    4.594286040    3.751850120    <br><br>   Zn     11.372375000    0.000000000    0.000000000    <br><br>    O     11.372375000    1.991586040    0.000000000    <br><br>   Zn      9.747750000    2.602700000    0.937962530    <br>
<br>    O      9.747750000    4.594286040    0.937962530    <br><br>   Zn      9.747750000    0.000000000    2.813887590    <br><br>    O      9.747750000    1.991586040    2.813887590    <br><br>   Zn      8.123125000    2.602700000    3.751850120    <br>
<br>    O      8.123125000    4.594286040    3.751850120    <br><br>   Zn      8.123125000    0.000000000    0.000000000    <br><br>    O      8.123125000    1.991586040    0.000000000    <br><br>   Zn      6.498500000    2.602700000    0.937962530    <br>
<br>    O      6.498500000    4.594286040    0.937962530    <br><br>   Zn      6.498500000    0.000000000    2.813887590    <br><br>    O      6.498500000    1.991586040    2.813887590    <br><br>   Zn     11.372375000    2.602700000    3.751850120    <br>
<br>    O     11.372375000    4.594286040    3.751850120    <br><br>   Zn      4.873875000    5.205400000    0.000000000    <br><br>    O      4.873875000    7.196986040    0.000000000    <br><br>   Zn      3.249250000    7.808100000    0.937962530    <br>
<br>    O      3.249250000    9.799686040    0.937962530    <br><br>   Zn      3.249250000    5.205400000    2.813887590    <br><br>    O      3.249250000    7.196986040    2.813887590    <br><br>   Zn      1.624625000    7.808100000    3.751850120    <br>
<br>    O      1.624625000    9.799686040    3.751850120    <br><br>   Zn      1.624625000    5.205400000    0.000000000    <br><br>    O      1.624625000    7.196986040    0.000000000    <br><br>   Zn      0.000000000    7.808100000    0.937962530    <br>
<br>    O      0.000000000    9.799686040    0.937962530    <br><br>   Zn      0.000000000    5.205400000    2.813887590    <br><br>    O      0.000000000    7.196986040    2.813887590    <br><br>   Zn      4.873875000    7.808100000    3.751850120    <br>
<br>    O      4.873875000    9.799686040    3.751850120    <br><br>   Zn     11.372375000    5.205400000    0.000000000    <br><br>    O     11.372375000    7.196986040    0.000000000    <br><br>   Zn      9.747750000    7.808100000    0.937962530    <br>
<br>    O      9.747750000    9.799686040    0.937962530    <br><br>   Zn      9.747750000    5.205400000    2.813887590    <br><br>    O      9.747750000    7.196986040    2.813887590    <br><br>   Zn      8.123125000    7.808100000    3.751850120    <br>
<br>    O      8.123125000    9.799686040    3.751850120    <br><br>   Zn      8.123125000    5.205400000    0.000000000    <br><br>    O      8.123125000    7.196986040    0.000000000    <br><br>   Zn      6.498500000    7.808100000    0.937962530    <br>
<br>    O      6.498500000    9.799686040    0.937962530    <br><br>   Zn      6.498500000    5.205400000    2.813887590    <br><br>    O      6.498500000    7.196986040    2.813887590    <br><br>   Zn     11.372375000    7.808100000    3.751850120    <br>
<br>    O     11.372375000    9.799686040    3.751850120    <br><br>K_POINTS automatic<br><br>  8 8 8   0 0 0<div>*************************************</div><div><p class="MsoNormal"><span dir="LTR">But Dos and bands that are obtained </span><span lang="FA" style="font-family:Arial,sans-serif"></span>is not true!!!</p>
<p class="MsoNormal"><span dir="LTR">for ex, i am obtain band gap 1.5 for
nanosheet ZnO</span><span lang="FA" style="font-family:Arial,sans-serif"></span></p><p class="MsoNormal"><span dir="LTR">What's wrong with my settings؟<br></span></p></div><div><p class="MsoNormal" dir="RTL"><span dir="LTR"></span></p>
<p class="MsoNormal" dir="RTL" style="text-align:left"><br></p></div></div>