Enter an atomic species: Pb Enter a cubic lattice type: fcc Enter a model name: MEAM_LAMMPS_KimLee_2017_MgPb__MO_325675357262_000 Enter a lattice constant (m): 4.94974747300148e-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