Enter a species (e.g. Al, Fe): Cr Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_LeeShimPark_2001_FeCr__MO_150993986463_000 Enter hexagonal lattice constants 'a' and 'c' (m): 2.612051043353782e-10, 4.136786131913817e-10