Enter a species (e.g. Al, Fe): Cu Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_JelinekGrohHorstemeyer_2012_AlSiMgCuFe__MO_262519520678_002 Enter hexagonal lattice constants 'a' and 'c' (m): 2.561302833259108e-10, 4.182590012153118e-10