Enter a species (e.g. Al, Fe): Fe Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_KimShinLee_2009_FeMn__MO_058735400462_000 Enter hexagonal lattice constants 'a' and 'c' (m): 2.535392426164278e-10, 4.093949668986467e-10