Enter a species (e.g. Al, Fe): Ag Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_GaoOteroAouadi_2013_AgTaO__MO_112077942578_000 Enter hexagonal lattice constants 'a' and 'c' (m): 2.88203419728741e-10, 4.723727305386756e-10