Enter a species (e.g. Al, Fe): Ni Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_ChoiKimSeol_2017_NiMn__MO_348689608050_001 Enter hexagonal lattice constants 'a' and 'c' (m): 2.484392436364734e-10, 4.091423360686726e-10