Enter a species (e.g. Al, Fe): V Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_ShimLeeFleury_2011_VH__MO_072444764353_001 Enter hexagonal lattice constants 'a' and 'c' (m): 2.720364184808496e-10, 4.372573095950369e-10