Enter a species (e.g. Al, Fe): U Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_MooreBeelerDeo_2015_UZr__MO_453094726678_000 Enter hexagonal lattice constants 'a' and 'c' (m): 3.022378731222469e-10, 4.963023930835638e-10