Enter a species (e.g. Al, Fe): Al Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_PascuetFernandez_2015_AlU__MO_596300673917_000 Enter hexagonal lattice constants 'a' and 'c' (m): 2.841702765333774e-10, 4.737621281648325e-10