Enter a species (e.g. Al, Fe): Fe Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_KimJungLee_2010_FeNbC__MO_072689718616_002 Enter hexagonal lattice constants 'a' and 'c' (m): 2.952500057220461e-10, 4.821412403818843e-10