[Pw_forum] Identifying the phonon mode from eigen vector

Stefano Baroni baroni at sissa.it
Thu Feb 9 14:47:01 CET 2012

>  If asked to bet, I would say that modes whose displacements in the unit cell are "more parallel" would have a more "optic character" 

Of, course, I meant "acoustic character". Sorry for the misunderstanding.


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