element: Ba lattice type: fcc modelname: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Failed to perform relaxation using initial lattice constant guess of 2.5 Angstroms Exception message: Attempted to evaluate energy at lattice spacing ([2.5]) below the minimum allowed value (2.7582300004184273). This may mean that the model does not possess close-range repulsive forces to prevent system collapse. Attempting to perform relaxation using initial lattice constant guess of 3.0 Angstroms Optimization terminated successfully. Current function value: -63.269330 Iterations: 33 Function evaluations: 68 {'lattice_constant': 5.913618707656868, 'cohesive_energy': 15.817332447204414, 'element': 'Ba', 'species': 'Ba" "Ba" "Ba" "Ba', 'crystal_structure': 'fcc', 'space_group': 'Fm-3m', 'wyckoff_code': '4a', 'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.0] [0.5 0.0 0.5] [0.0 0.5 0.5]]', 'iterations': 33, 'func_calls': 68, 'warnflag': 0, 'repeat': 0}