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_Al__MO_315820974149_002 Enter hexagonal lattice constants 'a' and 'c' (m): 2.860557961463931e-10, 4.671271590161771e-10