[Pw_forum] normal modes visualization

[Emine Kucukbenli]

Ciao Giuseppe,

Yes there is a small program that does that : dynmat.x
Call it like this:
$espresso_dir/bin/dynmat.x

then feed this one line input (no need for a separate input file)
&input fildyn='yourfile' /

it produces dynmat.axsf where the normal modes are represented as  
forces in xcrysden,
an animated xsf file, one frame per mode.

xcrysden --axsf dynmat.axsf

This is how it was working last time i checked, i dont think anything  
has changed..
emine kucukbenli, phd student, sissa, italy

ps: after writing i remembered this:
http://people.sissa.it/~degironc/QE-Tutorial/tutorial_phon.htm
check the "Phonons at Gamma point" section - last bit.

Quoting giuseppe.mattioli at mlib.ism.cnr.it:

> Dear all
> Does anybody know if there is any post-processing tool which allows
> one to visualize normal modes calculated with phonon.x or phcg.x in
> real space, as, for instance, ion displacement movies to be opened
> with xcrysden or xmakemol?
> Thank you in advance
>
> Giuseppe
>
> Giuseppe Mattioli
> ISM-CNR
> Italy
>
>
> _______________________________________________
> Pw_forum mailing list
> Pw_forum at pwscf.org
> http://www.democritos.it/mailman/listinfo/pw_forum