[Phonopy-users] Negative phonon frequencies

[Luis O. <lco...@gm...>]

Hi Artem,

   Just a naive suggestion : How did you get the optimized atomic positions
? In my experience, this is the most important point to get rid of negative
frequencies (but not the only one).
   We did not receive your graph. I believe that attachments are forbidden.
   All the best,
                     Luis