Hi, Well, what is the problem? Is it for a known system? Why do you think they should cross?
Anyway, go to PlotPhon in QE (4.2) and try it. Bests, Eyvaz ------------------------------------------------------------------- Prof. Eyvaz Isaev, Department of Physics, Chemistry, and Biology (IFM), Linkoping University, Sweden Theoretical Physics Department, Moscow State Institute of Steel & Alloys, Russia, isaev at ifm.liu.se, eyvaz_isaev at yahoo.com ________________________________ From: mayank gupta <[email protected]> To: pw_forum at pwscf.org Sent: Fri, August 27, 2010 10:53:04 AM Subject: [Pw_forum] crossing of phonon branches Hi In the phonon calculation the after matdyn.x run, we got the phonon frequency but they are not in correct order, I mean at different q point the phonon branches are crossing each other. Mayank BHU(INDIA) _______________________________________________ Pw_forum mailing list Pw_forum at pwscf.org http://www.democritos.it/mailman/listinfo/pw_forum -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20100827/639c52c7/attachment.htm
