Enter a species (e.g. Al, Fe): Ta Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: MEAM_LAMMPS_GaoOteroAouadi_2013_AgTaO__MO_112077942578_002 Enter hexagonal lattice constants 'a' and 'c' (m): 3.051802041381598e-10, 4.983571864912659e-10