<div dir="ltr"><span style="font-size:12.8px">Dear </span><span style="font-size:12.8px">Dr. Mitsuaki Kawamura,</span><br><div><br></div><div><span style="font-size:12.8px">Thank you for information! I have found that with non-shifted q-point, alpha2f gives the error, cannot locate k-point, in optimized tetrahedron method. Other calculation is ok. Please inform me how can I solve it!</span></div><div><br></div><div><span style="font-size:12.8px">Best regards </span></div><div><span style="font-size:12.8px">Enamul Haque</span></div></div><br><br><div class="gmail_quote"><div dir="ltr">On Thu, Feb 1, 2018 at 9:51 PM Mitsuaki Kawamura <<a href="mailto:mkawamura@issp.u-tokyo.ac.jp">mkawamura@issp.u-tokyo.ac.jp</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear Dr. Enamul Haque<br>
<br>
Sorry, q2r.x does not work on the shifted q-grid.<br>
Please use the regular (unshifted) grid.<br>
<br>
Best regards,<br>
Mitsuaki Kawamura<br>
<br>
From: <a href="mailto:pw_forum-bounces@pwscf.org" target="_blank">pw_forum-bounces@pwscf.org</a> [mailto:<a href="mailto:pw_forum-bounces@pwscf.org" target="_blank">pw_forum-bounces@pwscf.org</a>] On Behalf Of Enamul Haque<br>
Sent: Thursday, February 1, 2018 11:51 PM<br>
To: <a href="mailto:pw_forum@pwscf.org" target="_blank">pw_forum@pwscf.org</a><br>
Subject: Re: [Pw_forum] phonon dispersion by using optimized tetrahedron method<br>
<br>
Dear Dr. Mitsuaki Kawamura,<br>
<br>
Thank you for your great information. Can you please tell me, how to do so? Basically, after calculation of dynamical matrix, then can I run q2r in the 6.2.1 version? I use q-shift, then q2r does not work, you know this. Please tell me details<br>
Best regards<br>
Enamul Haque<br>
<br>
On Thu, Feb 1, 2018 at 8:07 PM Mitsuaki Kawamura <mailto:<a href="mailto:mkawamura@issp.u-tokyo.ac.jp" target="_blank">mkawamura@issp.u-tokyo.ac.jp</a>> wrote:<br>
Dear Dr. Enamul Haque<br>
<br>
Hello,<br>
<br>
QE v 6.2.1 supports the calculation of the phonon dispersion interpolated from the result of DFPT with the optimized tetrahedron method.<br>
<br>
Best regards,<br>
Mitsuaki Kawamura<br>
<br>
--<br>
------------------------------------------------------<br>
Dr. Mitsuaki Kawamura<br>
Software Advancement Team<br>
Supercomputer Section<br>
Materials Design and Characterization Laboratory<br>
The Institute for Solid State Physics, Kashiwa, Japan<br>
e-mail : mailto:<a href="mailto:mkawamura@issp.u-tokyo.ac.jp" target="_blank">mkawamura@issp.u-tokyo.ac.jp</a><br>
------------------------------------------------------<br>
<br>
From: mailto:<a href="mailto:pw_forum-bounces@pwscf.org" target="_blank">pw_forum-bounces@pwscf.org</a> [mailto:<a href="mailto:mailto" target="_blank">mailto</a>:<a href="mailto:pw_forum-bounces@pwscf.org" target="_blank">pw_forum-bounces@pwscf.org</a>] On Behalf Of Enamul Haque<br>
Sent: Thursday, February 1, 2018 8:33 PM<br>
To: mailto:<a href="mailto:pw_forum@pwscf.org" target="_blank">pw_forum@pwscf.org</a><br>
Subject: [Pw_forum] phonon dispersion by using optimized tetrahedron method<br>
<br>
Dear PWSCF users<br>
<br>
I am very interested to calculated the e-ph constant by using both tetrahedron and interpolated method. I can do both task. The problem is that I cannot calculate the phonon dispersion by using tetrahedron method, and I do not find any source to solve this, although I can do this by using interpolated method. Since q2r code does not work in tetrahedron method, how can I run matdyn?<br>
<br>
It would be a great pleasure for me if you help me in this regard.<br>
<br>
Thank you for your time!<br>
<br>
Best Regards,<br>
Enamul Haque<br>
Dept. of physics<br>
MBSTU<br>
Bangladesh<br>
+8801933664380<br>
mailto:<a href="mailto:mailto" target="_blank">mailto</a>:enamul@mailaps.orgmailto:mailto:<a href="mailto:aps@gmail.com" target="_blank">aps@gmail.com</a><br>
<br>
<br>
<br>
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