element: Nb lattice type: sc modelname: MEAM_LAMMPS_KimJungLee_2010_FeNbC__MO_072689718616_002 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -3.788405 Iterations: 27 Function evaluations: 54 {'lattice_constant': 2.2867067232728004, 'cohesive_energy': 3.7884049690214283, 'element': 'Nb', 'species': 'Nb', 'crystal_structure': 'sc', 'space_group': 'Pm-3m', 'wyckoff_code': '1a', 'basis_atoms': '[[0.0 0.0 0.0]]', 'iterations': 27, 'func_calls': 54, 'warnflag': 0, 'repeat': 0}