Normal modes for Wurtzite
 &inputph
  tr2_ph=1.0d-14,
  prefix='ZNO',
  amass(1)=65.409,
  amass(2)=15.999,
  outdir='/home/pietro/espresso-svn/tempdir'
  epsil=.false.,
  ! lraman=.true.
  trans=.true.,
  asr=.true.
  fildyn='dmat.zno'
 /
 0.0 0.0 0.0