element: Nb lattice type: bcc modelname: MEAM_LAMMPS_YangQi_2019_Nb__MO_360068930164_001 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -13.994603 Iterations: 29 Function evaluations: 58 {'lattice_constant': 3.322380468249321, 'cohesive_energy': 6.997301419694706, 'element': 'Nb', 'species': 'Nb" "Nb', 'crystal_structure': 'bcc', 'space_group': 'Im-3m', 'wyckoff_code': '2a', 'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.5]]', 'iterations': 29, 'func_calls': 58, 'warnflag': 0, 'repeat': 0}