Enter a species (e.g. Al, Fe): V Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_ShimKoKim_2013_NiVH__MO_612225165948_001 Enter hexagonal lattice constants 'a' and 'c' (m): 2.720364217549406e-10, 4.372573017268147e-10