<div dir="ltr">Thank you Paolo for your immediate response. I understand that <span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Martyna-Tuckerman acts on the Hartree potential by cutting off its tail in the real space, so the interaction between images from different cells can be entirely screened as long as the supercell is more than twice as large as the size of the molecule. However, in the case of a non-local functional, the interaction between images still exists even with MT via the non-local exchange-correlation, hence MT is not describing a system equivalent to isolated molecules as it is in the case of local functionals. Am I understanding correctly? Thanks. </span></div>
<div class="gmail_extra"><br clear="all"><div><div dir="ltr">===================<br>Dr. Xiaochuan Ge (Giovanni)<div>Center for Functional Nanomaterials<br><div>Brookhaven national laboratory </div><div>===================</div>
</div></div></div>
<br><br><div class="gmail_quote">On 1 April 2014 12:53, Paolo Giannozzi <span dir="ltr"><<a href="mailto:paolo.giannozzi@uniud.it" target="_blank">paolo.giannozzi@uniud.it</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Martyna-Tuckerman acts on the electrostatic (Hartree) potential only.<br>
I don't think there is any danger in using it together with vdW-DF<br>
functionals, as long as you use it for a non-periodic system<br>
<br>
Paolo<br>
<div><div class="h5"><br>
On Tue, 2014-04-01 at 11:23 -0400, xiaochuan Ge wrote:<br>
> Dear all,<br>
><br>
><br>
> I have no experience of using assumu_isolate=martyna-tuckerman in the<br>
> scf calculation, but I am afraid that MT is not straightforward with a<br>
> non-local functional. Being not confident to use it blindly, I would<br>
> like to ask if anyone can give some comments, may I use MT with VdW as<br>
> in the case of LDA?<br>
><br>
><br>
> I appreciate your help very much.<br>
><br>
> ===================<br>
> Dr. Xiaochuan Ge (Giovanni)<br>
> Center for Functional Nanomaterials<br>
> Brookhaven national laboratory<br>
> ===================<br>
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<span class="HOEnZb"><font color="#888888"><br>
--<br>
Paolo Giannozzi, Dept. Chemistry&Physics&Environment,<br>
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy<br>
Phone <a href="tel:%2B39-0432-558216" value="+390432558216">+39-0432-558216</a>, fax <a href="tel:%2B39-0432-558222" value="+390432558222">+39-0432-558222</a><br>
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