Enter a species (e.g. Al, Fe): Sn Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_EtesamiBaskesLaradji_2018_PbSn__MO_162736908871_000 Enter hexagonal lattice constants 'a' and 'c' (m): 3.437809820720363e-10, 5.605379056273888e-10