phonons of UO2
 &inputph
  outdir='...',
  prefix='UO2',
  niter_ph=300,
  tr2_ph=1.0d-10,
  ldisp=.true.,
  nq1=6, nq2=6, nq3=6,
  amass(1)=238.0,
  amass(2)=16.0,
  fildyn='UO2.dyn',
! epsil=.false.,
 /