Enter an atomic species: Ca Enter a cubic lattice type: fcc Enter a model name: Morse_Shifted_GirifalcoWeizer_1959HighCutoff_Ca__MO_159753408472_002 Enter a lattice constant (m): 5.559938663989308e-10 Writing phonon.eq.pckl Writing phonon.0x-.pckl Writing phonon.0x+.pckl Writing phonon.0y-.pckl Writing phonon.0y+.pckl Writing phonon.0z-.pckl Writing phonon.0z+.pckl