<div dir="ltr"><img width="0" height="0" class="mailtrack-img" alt="" style="display:flex" src="https://mailtrack.io/trace/mail/394cb65a7faf0d84a9c78fee0186a95b96603cb7.png?u=4146940"><br><div class="gmail_quote"><div dir="ltr"><div dir="ltr">Respected QE users and developers,<div><br></div><div>I read the paper on calculating the thermal conductivity from the Density Functional Theory (<a href="https://www.nature.com/articles/nphys3509" target="_blank">https://www.nature.com/articles/nphys3509</a>). I am trying to calculate the thermal conductivity for different systems using this method. I do not have knowledge of how to do it with QE codes. I am unable to find a detailed description of the thermal conductivity calculation in the QE documentation.</div><div><br></div><div>The paper states that</div><div>"The methodology presented above has been implemented in the Quantum ESPRESSO suite of computer codes: a Car–Parrinello (CP) AIMD trajectory is first generated using the cp.x code; the energy flux is then evaluated along this trajectory by an add-on to the pw.x code implemented using several density-functional perturbation theory routines borrowed from the ph.x code; the thermal conductivity is finally computed from the GK relation, or the equivalent Einstein relation."<br></div><div><br></div><div>I am unable to follow this and do the computation. I will be very grateful if someone can guide (for an amateur) to how to go about doing the calculation or can provide a detailed documentation on how to do the calculation (hands-on). </div><div><br></div><div>Thanks and regards</div><div>Arihant Bhandari</div><div>PhD student</div><div>Indian Institute of Technology Kanpur<br><br><br></div></div></div>
</div><br></div>