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[GaoTao <gaotaoscu@hotmail.com>]

Hi Pietro,
 
Thanks very much for your answer to the symmetry of phonon frequencies. However, I am still not very clear for this problem. How can I set the input parameter in the input file of "anaddb" in order to print out the character table for each set of frequency degenerate modes? And where can I find this the character table for each set of frequency degenerate modes?. If possible, Could you please email me an example input file for this problem?
 
Thank you very much.
 
Best,
 
Tao
 


> Date: Sat, 5 Apr 2008 09:10:31 +0200
> From: delugas@dsf.unica.it
> To: forum@abinit.org
> Subject: Re: [abinit-forum] Fwd: Symmetry
>
> Dear Amit
> The post processing utility "anaddb" prints out the character table for each
> set of frequency degenerate modes, if the degeneracy is not accidental you can
> just compare this with the character tables of the different irreducible
> representations of the symmetry group and find the one corresponding to your
> set of modes.
> hope this helps
> regards pietro
>
>
> > ---------- Forwarded message ----------
> > Date: Apr 1, 2008 3:54 PM
> > Subject: Symmetry
> > To: forum@abinit.org
> >
> >
> > Dear All,
> >
> > Does Abinit display the symmetry of the phonon normal modes
> > together with the phonon frequencies in its output file?????
> >
> >
> > Regards,
> > Amit
> >
>
>

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