Enter an atomic species: Cu Enter a cubic lattice type: fcc Enter a model name: MEAM_LAMMPS_LeeWirthShim_2005_FeCu__MO_063626065437_000 Enter a lattice constant (m): 3.613315634429455e-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