<div dir="ltr">To whom it concerns,<br clear="all"><div><br></div><div>I am trying to use QuantumEspresso to do some geometry optimization calculations. But my self-consistency does not converge. I have tried your ideas in the official site, but it is still not working. Can you give me some suggestion?</div>
<div><br></div><div>Here is my input data:</div><div><br></div><div>
<p class="">&control</p>
<p class=""> calculation = 'vc-relax'</p>
<p class=""> pseudo_dir = '/home/frankhen/espresso/pseudo/'</p>
<p class=""> restart_mode = 'from_scratch'</p>
<p class=""> prefix = 'sto',</p>
<p class=""> verbosity = 'high',</p>
<p class="">/</p>
<p class="">&system</p>
<p class=""> ibrav = 0</p>
<p class=""> celldm(1) = 0</p>
<p class=""> nat = 39,</p>
<p class=""> ntyp = 5,</p>
<p class=""> ecutwfc = 25.0,</p>
<p class=""> ecutrho = 250.0,</p>
<p class=""> occupations = 'smearing',</p>
<p class=""> degauss = 0.05,</p>
<p class="">/</p>
<p class="">&electrons</p>
<p class=""> conv_thr = 1.D-4,</p>
<p class=""> electron_maxstep = 10000,</p>
<p class=""> mixing_beta = 0.3,</p>
<p class=""> diagonalization = 'cg',</p>
<p class="">/</p>
<p class="">&ions</p>
<p class="">/</p>
<p class="">&CELL</p>
<p class=""> cell_dynamics = 'damp-w' ,</p>
<p class=""> press = 0.00 ,</p>
<p class=""> wmass = 0.00700000</p>
<p class=""> /</p>
<p class="">ATOMIC_SPECIES</p>
<p class=""> Fe 55.85 Fe.pbe-sp-van_ak.UPF</p>
<p class=""> Co 58.93 Co.pbe-sp-van.UPF</p>
<p class=""> La 138.91 La.pbe-nsp-van.UPF</p>
<p class=""> Sr 87.62 Sr.pbe-nsp-van.UPF</p>
<p class=""> O 15.9994 O.pbe-van_ak.UPF</p>
<p class="">ATOMIC_POSITIONS</p>
<p class="">Fe 0.5 0 0 1 1 1</p>
<p class="">Fe 0 0.5 0 1 1 1</p>
<p class="">Fe 0 0 0.5 1 1 1</p>
<p class="">Fe 0 0.5 0.5 1 1 1</p>
<p class="">Fe 0.5 0 0.5 1 1 1</p>
<p class="">Fe 0.5 0.5 0 1 1 1</p>
<p class="">Co 0 0 0 1 1 1</p>
<p class="">Co 0.5 0.5 0.5 1 1 1</p>
<p class="">La 0.25 0.25 0.25 1 1 1</p>
<p class="">La 0.25 0.75 0.25 1 1 1</p>
<p class="">La 0.25 0.25 0.75 1 1 1</p>
<p class="">La 0.75 0.25 0.75 1 1 1</p>
<p class="">La 0.75 0.75 0.25 1 1 1</p>
<p class="">La 0.75 0.75 0.75 1 1 1</p>
<p class="">Sr 0.75 0.25 0.25 1 1 1</p>
<p class="">Sr 0.25 0.75 0.75 1 1 1</p>
<p class="">O 0 0.25 0 1 1 1</p>
<p class="">O 0 0 0.25 1 1 1</p><p class="">O 0.75 0 0 1 1 1</p><p class="">O 0.5 0.25 0 1 1 1</p><p class="">O 0.5 0 0.25 1 1 1</p><p class="">O 0.25 0.5 0 1 1 1</p><p class="">O 0 0.75 0 1 1 1</p><p class="">O 0 0.5 0.25 1 1 1</p>
<p class="">O 0.25 0 0.5 1 1 1</p><p class="">O 0 0.25 0.5 1 1 1</p><p class="">O 0 0 0.75 1 1 1</p><p class="">O 0.25 0.5 0.5 1 1 1</p><p class="">O 0 0.75 0.5 1 1 1</p><p class="">O 0 0.5 0.75 1 1 1</p><p class="">O 0.75 0 0.5 1 1 1</p>
<p class="">O 0.5 0.25 0.5 1 1 1</p><p class="">O 0.5 0 0.75 1 1 1</p><p class="">O 0.75 0.5 0 1 1 1</p><p class="">O 0.5 0.75 0 1 1 1</p><p class="">O 0.5 0.5 0.25 1 1 1</p><p class="">O 0.75 0.5 0.5 1 1 1</p><p class="">
O 0.5 0.75 0.5 1 1 1</p><p class="">O 0.5 0.5 0.75 1 1 1</p><p class="">K_POINTS {automatic}</p><p class=""> 2 2 2 0 0 0</p><p class="">CELL_PARAMETERS {angstrom}</p><p class="">14.74 0.0 0.0</p><p class="">0.0 14.74 0.0</p>
<p class="">0.0 0.0 14.74</p><p class="">
</p><p class=""><br></p><p class="">Sincerely,</p><p class="">Heng</p></div><div><br></div>-- <br><div dir="ltr">Heng Luo<div>Ph.D candidate</div><div>Department of Mechanical Engineering</div><div>15 Saint Mary's Street, Room 122</div>
<div>Brookline, Ma 02446</div><div>Boston University</div><div><br></div><div>Office: 617-353-8469</div></div>
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