[Pw_forum] LO-TO splitting in dynmat.x
nkxirainbow at gmail.com
Fri Apr 29 05:00:47 CEST 2011
Thanks very much for your help:)
LO-TO splitting always exists in Brillouin zone, but two points are worth
I do not think so. I do not find any LO-TO splitting at the X and R point of
Brillouin zone of cubic.
Because I use finite difference method, I do not know LO-TO splitting
persists at other part.
> (2) only cubic crystals has LO and TO braches.
The LO-TO splitting exists also in uniaxial crystal(direction dispersion in
School of physics, Fudan University, Shanghai, China
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