On Jul 18, 2012, at 13:42 , Claudio Perottoni wrote: > Try setting epsil=.true. in your input file.
it is not sufficient: the code cannot calculate the dielectric tensor for what appears to be a metal (even if it isn't). A simple solution might be to perform a calculation with fixed occupancies read from input, starting from the self-consistent charge density, before the phonon calculation P. --- Paolo Giannozzi, Dept of Chemistry&Physics&Environment, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222