<div dir="ltr">QE does not directly calculate phonon lifetimes but it is possible to calculate the third-order anharmonic force constants from which you can derive lifetime. d3.x is the program that is used to calculate third-order force constants.<div>
Sridhar</div><div>Purdue University</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jun 17, 2014 at 10:44 PM, JAONA RANDRIANALISOA <span dir="ltr"><<a href="mailto:jaona.randrianalisoa@univ-reims.fr" target="_blank">jaona.randrianalisoa@univ-reims.fr</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear All,<br>
<br>
I am new user of Quantum Espresso software and my research focus<br>
concerns mainly thermal properties of materials (more particularly<br>
silicon nanostructures).<br>
<br>
I would like to know if it is possible to calculate "the lifetime due to<br>
anharmonic phonon–phonon interaction" with<br>
arbitrary wavevectors with QE package v5.1.<br>
<br>
Best regards,<br>
<br>
Jaona Randriaalisoa, Assistant Professor<br>
Université de Reims Champagne-Ardenne<br>
<br>
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