Enter a species (e.g. Al, Fe): Nb Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_HuangLiuDuan_2021_HfNbTaTiZr__MO_893505888031_002 Enter hexagonal lattice constants 'a' and 'c' (m): 2.946998888254167e-10, 4.812429032514674e-10