quantum-espresso/test-suite/ph_U_insulator_us/BN.phG.in

phonons of BN at Gamma
 &inputph
  tr2_ph    = 1.0d-14,
  prefix    = 'bn',
  outdir    = './'
  epsil     = .true.,
  fildyn    = 'bn.dynG',
  verbosity = 'medium'
 /
0.00000000  0.00000000  0.00000000