<font color='black' size='2' face='arial'><font face="arial" size="2" color="black">I may be missing something, but when I opened your structure with the XCrysden there were many warning messages, including many messages of atoms overlapped. I don't have Jmole to re-check, but it seems to me that your structure is too much compressed.<br>
<br>
<br>
Fabio Negreiros Ribeiro<br>
Laboratorio de Fisica de Superficies da Universidade Federal de Minas Gerais, Brasil<br>
<br>
<br>

<div style="font-family: arial,helvetica; font-size: 10pt; color: black;">-----Original Message-----<br>

From: Payam Norouzzadeh &lt;payam.norouzzadeh@gmail.com&gt;<br>

To: pw_forum@pwscf.org<br>

Sent: Wed, Jun 16, 2010 5:29 pm<br>

Subject: [Pw_forum] overlap of atoms<br>

<br>








<div id="AOLMsgPart_3_41152735-7674-438a-9112-d7b322c5108b">



<div dir="ltr">Hello Espresso users

<div>I have checked the structure I want to relax it by Xcrysden and Jmole and there was no overlap between atoms but Espresso leave</div>



<div>an error message &nbsp;like : overlap between atoms 1 and 5, 2 and 6 ,....</div>




<div>Could someone please have a look to my input file and let me know how can I fix it?</div>



<div><br>

</div>



<div>Best regards,Payam Norouzzadeh</div>



<div><br>

</div>



<div><br>

</div>



<div>&nbsp;&amp;CONTROL</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; title = Ba ,</div>




<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; calculation = 'relax' ,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;restart_mode = 'from_scratch' ,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;wf_collect = .true. ,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;outdir = '/lustre/work/pnorouzz/espresso/Ba/relax' ,</div>




<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;wfcdir = '/lustre/work/pnorouzz/espresso/Ba/relax' ,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;pseudo_dir = '/lustre/work/pnorouzz/espresso/Ba/relax' ,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;dt = 20 ,</div>




<div>&nbsp;/</div>



<div>&nbsp;&amp;SYSTEM</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ibrav = &nbsp;3,&nbsp;</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; celldm(1) = 11.6,&nbsp;</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; nat = 54,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ntyp = 3,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ecutwfc = 50 ,</div>




<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ecutrho = 500 ,</div>



<div>&nbsp;/</div>



<div>&nbsp;&amp;ELECTRONS</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;conv_thr = 1.D-8 ,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; mixing_beta = 0.5D0 ,</div>



<div>&nbsp;/</div>



<div>&nbsp;&amp;IONS</div>



<div>
&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;ion_dynamics = 'damp' ,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; pot_extrapolation = 'second_order' ,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; wfc_extrapolation = 'second_order' ,</div>



<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; upscale = 100 ,</div>




<div>&nbsp;/</div>



<div>ATOMIC_SPECIES</div>



<div>&nbsp;&nbsp; Ba &nbsp; 137.327 &nbsp; &nbsp;Ba.pw91-nsp-van.UPF</div>



<div>&nbsp;&nbsp; Sn &nbsp; 118.710 &nbsp; &nbsp;Sn.pw91-n-van.UPF</div>



<div>&nbsp;&nbsp; Ga &nbsp; 71.0843639 Ga.pw91-n-van.UPF&nbsp;</div>



<div>ATOMIC_POSITIONS &nbsp;</div>



<div>Ba<span class="Apple-tab-span" style="white-space: pre;"> </span>0.186<span class="Apple-tab-span" style="white-space: pre;">   </span>0.186<span class="Apple-tab-span" style="white-space: pre;">   </span>0.186</div>




<div>Ba<span class="Apple-tab-span" style="white-space: pre;">  </span>0.814<span class="Apple-tab-span" style="white-space: pre;">   </span>0.814<span class="Apple-tab-span" style="white-space: pre;">   </span>0.186</div>



<div>Ba<span class="Apple-tab-span" style="white-space: pre;"> </span>0.814<span class="Apple-tab-span" style="white-space: pre;">   </span>0.186<span class="Apple-tab-span" style="white-space: pre;">   </span>0.814</div>




<div>Ba<span class="Apple-tab-span" style="white-space: pre;">  </span>0.186<span class="Apple-tab-span" style="white-space: pre;">   </span>0.814<span class="Apple-tab-span" style="white-space: pre;">   </span>0.814</div>



<div>Ba<span class="Apple-tab-span" style="white-space: pre;"> </span>0.686<span class="Apple-tab-span" style="white-space: pre;">   </span>0.686<span class="Apple-tab-span" style="white-space: pre;">   </span>0.686</div>




<div>Ba<span class="Apple-tab-span" style="white-space: pre;">  </span>0.314<span class="Apple-tab-span" style="white-space: pre;">   </span>0.314<span class="Apple-tab-span" style="white-space: pre;">   </span>0.686</div>



<div>Ba<span class="Apple-tab-span" style="white-space: pre;"> </span>0.314<span class="Apple-tab-span" style="white-space: pre;">   </span>0.686<span class="Apple-tab-span" style="white-space: pre;">   </span>0.314</div>




<div>Ba<span class="Apple-tab-span" style="white-space: pre;">  </span>0.686<span class="Apple-tab-span" style="white-space: pre;">   </span>0.314<span class="Apple-tab-span" style="white-space: pre;">   </span>0.314</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;"> </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0.5</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">   </span>0.6348<span class="Apple-tab-span" style="white-space: pre;">  </span>0.6348<span class="Apple-tab-span" style="white-space: pre;">  </span>0.3652</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.3652<span class="Apple-tab-span" style="white-space: pre;">  </span>0.6348<span class="Apple-tab-span" style="white-space: pre;">  </span>0.6348</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">    </span>0.1348<span class="Apple-tab-span" style="white-space: pre;">  </span>0.1348<span class="Apple-tab-span" style="white-space: pre;">  </span>0.8652</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.8652<span class="Apple-tab-span" style="white-space: pre;">  </span>0.1348<span class="Apple-tab-span" style="white-space: pre;">  </span>0.1348</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">    </span>0.41596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.41596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.1441</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.58404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.58404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.1441</div>



<div>
Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.58404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.41596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.8559</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">    </span>0.41596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.58404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.8559</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.1441<span class="Apple-tab-span" style="white-space: pre;">  </span>0.41596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.41596</div>



<div>
Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.8559<span class="Apple-tab-span" style="white-space: pre;">  </span>0.41596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.58404</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">   </span>0.41596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.1441<span class="Apple-tab-span" style="white-space: pre;">  </span>0.41596</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.58404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.1441<span class="Apple-tab-span" style="white-space: pre;">  </span>0.58404</div>



<div>
Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.91596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.91596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.6441</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">    </span>0.08404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.08404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.6441</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.08404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.91596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.3559</div>



<div>
Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.91596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.08404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.3559</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">    </span>0.6441<span class="Apple-tab-span" style="white-space: pre;">  </span>0.91596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.91596</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.3559<span class="Apple-tab-span" style="white-space: pre;">  </span>0.91596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.08404</div>



<div>
Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.91596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.6441<span class="Apple-tab-span" style="white-space: pre;">  </span>0.91596</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">   </span>0.08404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.6441<span class="Apple-tab-span" style="white-space: pre;">  </span>0.08404</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.91596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.3559<span class="Apple-tab-span" style="white-space: pre;">  </span>0.08404</div>



<div>
Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.08404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.3559<span class="Apple-tab-span" style="white-space: pre;">  </span>0.91596</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">   </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0.25<span class="Apple-tab-span" style="white-space: pre;">    </span>0.5</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0.75<span class="Apple-tab-span" style="white-space: pre;">    </span>0.5</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">   </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0.25</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0.75</div>



<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0.25</div>




<div>Sn<span class="Apple-tab-span" style="white-space: pre;">  </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0.75</div>



<div>Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.3652<span class="Apple-tab-span" style="white-space: pre;">  </span>0.3652<span class="Apple-tab-span" style="white-space: pre;">  </span>0.3652</div>




<div>Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.6348<span class="Apple-tab-span" style="white-space: pre;">  </span>0.3652<span class="Apple-tab-span" style="white-space: pre;">  </span>0.6348</div>



<div>Ga<span class="Apple-tab-span" style="white-space: pre;">    </span>0.8652<span class="Apple-tab-span" style="white-space: pre;">  </span>0.8652<span class="Apple-tab-span" style="white-space: pre;">  </span>0.8652</div>




<div>Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.1348<span class="Apple-tab-span" style="white-space: pre;">  </span>0.8652<span class="Apple-tab-span" style="white-space: pre;">  </span>0.1348</div>



<div>Ga<span class="Apple-tab-span" style="white-space: pre;">    </span>0.1441<span class="Apple-tab-span" style="white-space: pre;">  </span>0.58404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.58404</div>




<div>Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.8559<span class="Apple-tab-span" style="white-space: pre;">  </span>0.58404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.41596</div>



<div>
Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.41596<span class="Apple-tab-span" style="white-space: pre;"> </span>0.8559<span class="Apple-tab-span" style="white-space: pre;">  </span>0.58404</div>



<div>Ga<span class="Apple-tab-span" style="white-space: pre;">   </span>0.58404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.8559<span class="Apple-tab-span" style="white-space: pre;">  </span>0.41596</div>




<div>Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.6441<span class="Apple-tab-span" style="white-space: pre;">  </span>0.08404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.08404</div>



<div>
Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.3559<span class="Apple-tab-span" style="white-space: pre;">  </span>0.08404<span class="Apple-tab-span" style="white-space: pre;"> </span>0.91596</div>



<div>Ga<span class="Apple-tab-span" style="white-space: pre;">   </span>0.25<span class="Apple-tab-span" style="white-space: pre;">    </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0</div>




<div>Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.75<span class="Apple-tab-span" style="white-space: pre;">    </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0</div>



<div>Ga<span class="Apple-tab-span" style="white-space: pre;"> </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0.25<span class="Apple-tab-span" style="white-space: pre;">    </span>0</div>




<div>Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.5<span class="Apple-tab-span" style="white-space: pre;"> </span>0.75<span class="Apple-tab-span" style="white-space: pre;">    </span>0</div>



<div>Ga<span class="Apple-tab-span" style="white-space: pre;"> </span>0.25<span class="Apple-tab-span" style="white-space: pre;">    </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0.5</div>




<div>Ga<span class="Apple-tab-span" style="white-space: pre;">  </span>0.75<span class="Apple-tab-span" style="white-space: pre;">    </span>0<span class="Apple-tab-span" style="white-space: pre;">   </span>0.5</div>



<div>K_POINTS automatic&nbsp;</div>




<div>4 4 4 &nbsp;0 0 0&nbsp;</div>

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