element=lattice type=modelname=Rb fcc Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Rb__MO_754498969542_002 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -3.126402 Iterations: 34 Function evaluations: 70 {'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]]', 'repeat': 0, 'cohesive_energy': 0.7816006198185603, 'space_group': 'Fm-3m', 'element': 'Rb', 'lattice_constant': 7.312684178352356, 'wyckoff_code': '4a', 'crystal_structure': 'fcc', 'iterations': 34, 'warnflag': 0, 'species': 'Rb" "Rb" "Rb" "Rb', 'func_calls': 70}