Thanks, i obtain more fast convergence for 1V/A, but ...<br><br>If I use the previous results from 1V/A in order to calculate an increase in the Field i obtain fluctuation in the energy.<br><br> total energy = -261.46819272 Ry<br>
total energy = -261.46815798 Ry<br> total energy = -261.46816720 Ry<br> total energy = -261.46260676 Ry<br> total energy = -261.37365516 Ry<br>
total energy = -261.46820680 Ry<br> total energy = -261.46821935 Ry<br> total energy = -261.46807352 Ry<br> total energy = -261.46825528 Ry<br>
total energy = -261.46820900 Ry<br> total energy = -261.46803348 Ry<br><br>for my case, is recommendable reduce the precision by default of the energy convergence from 1D-4 to 1D-3? i mean with 3 decimal is good for me, but i don't know if a similar scheme happen at different electric field.<br>
<br>Best Regards<br>Joaquín Peralta<br><br><div class="gmail_quote">On Tue, Aug 31, 2010 at 1:59 AM, Tone Kokalj <span dir="ltr"><<a href="mailto:tone.kokalj@ijs.si">tone.kokalj@ijs.si</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class="im">On Mon, 2010-08-30 at 14:43 -0500, joaquin peralta wrote:<br>
><br>
</div><div class="im">> Sorry, I have now a slab put in the middle of the cell in the Z axis,<br>
> from z=32 to z=50 (maximum).<br>
<br>
</div><div class="im">I see. If the slab is located in the middle of the cell (i.e. at 0.5 in<br>
crystal units) then the dipole layer at 0.0 is OK!<br>
<br>
In this case here is the suggestion:<br>
Your 1 V/Angs is rather strong field. First perform SCF with lower field<br>
or no field (what Paolo suggested) and then use that as an input guess.<br>
<br>
</div><div><div></div><div class="h5">Regards, Tone<br>
<br>
--<br>
Anton Kokalj<br>
J. Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia<br>
(tel: +386-1-477-3523 // fax:+386-1-477-3822)<br>
<br>
Please, if possible, avoid sending me Word or PowerPoint attachments.<br>
See: <a href="http://www.gnu.org/philosophy/no-word-attachments.html" target="_blank">http://www.gnu.org/philosophy/no-word-attachments.html</a><br>
<br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>----------------------------------------------------<br>Group of NanoMaterials<br>----------------------------------------------------<br><a href="http://www.gnm.cl" target="_blank">http://www.gnm.cl</a><br>
----------------------------------------------------<br>Joaquín Andrés Peralta Camposano<br>----------------------------------------------------<br><a href="http://www.lpmd.cl/jperalta" target="_blank">http://www.lpmd.cl/jperalta</a><br>
<br>In a world without frontiers, <br>who needs Gates and Win.<br>