<div dir="ltr">In the 6.2 version, it is possible to use the "spin-balanced" approach,
setting the -D__SPIN_BALANCED precompilation flag at compile time. This
allows to compute the stress. Some explanation by Per Hyldgaard:<br><br>"There
is an Occam's razor argument for keeping the full
spin vdW-DF formulation (from the PRL 115, 136402 (2015)) as standard:
that the vdW-DF method be used and thus tested without options that lies
outside the logic of the construction. In the present vdW-DF framework
the aforementioned PRL give the one spin vdW-DF formulation that is
compatible with spin scaling of exchange.<br>
<br>
On the other hand, one can certainly vc-relax in the spin-balanced approach
and then do sanity checks on the resulting structure afterwards."</div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Oct 18, 2017 at 5:03 PM, Bogdan Yavorskyy <span dir="ltr"><<a href="mailto:Bogdan.Yavorskyy@lrz.uni-muenchen.de" target="_blank">Bogdan.Yavorskyy@lrz.uni-muenchen.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><span class="">Dear Developers,<div><br></div><div>in the PWSCF code v.6.1 the possibility to relax cell parameters (<b>vc-relax</b>) together with van der Waals functional, <b>input_dft=' vdW-DF2’ </b></div></span><div>for magnetic systems (<b>nspin=2)</b> is not implemented. While this option is highly desirable for my research, I would kindly ask You if You are going to include this possibility in the future version?</div><span class=""><div><br></div><div>Many thanks in advance,</div><div>Bogdan Yavorskyy.</div></span></div><br>______________________________<wbr>_________________<br>
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