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- From: PGanesh <pganesh@ciw.edu>
- To: forum@abinit.org
- Subject: Re: [abinit-forum] Distinguish between T1u and T2u in O_h
- Date: Wed, 07 Jan 2009 10:12:56 -0500
I got it. Thanks.
Ganesh
matthieu verstraete wrote:
8702bdd10901061615l6ea1e601t287e6a643a4470b@mail.gmail.com"
type="cite">
the characters are in the same order as the symrel (so include some
repetitions if there are several 2-axes, for instance). And the symrel
are identified at the beginning of a ground state run, at least in the
log file. In this case I can't guarantee they are in the same order as
the final symrel, but at least you have the operations. From the symrel
anyway you should be able to recognize them.
Matthieu
On Tue, Jan 6, 2009 at 8:23 PM, PGanesh <pganesh@ciw.edu>
wrote:
Hi,
I am looking at symmetries of phonons at gamma. Since T1u (gamma15) and
T2u (gamma25) modes in O_h have the same number of different terms in
the character table (same number of '0s' and '1's' etc.) how do I
distinguish between them? Is there any way I can write out to what
symmetry operation the particular character belongs to ?
Thanks,
Ganesh
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dr. Matthieu Verstraete
European Theoretical Spectroscopy Facility (ETSF)
Dpto. Fisica de Materiales,
U. del Pais Vasco,
Centro Joxe Mari Korta, Av. de Tolosa, 72, Phone: +34-943018393
E-20018 Donostia-San Sebastian, Spain Fax : +34-943018390
Mail : matthieu.jean.verstraete@gmail.com
http://www-users.york.ac.uk/~mjv500
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