element=lattice type=modelname=Rb fcc Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Rb__MO_147245690895_002 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -3.486549 Iterations: 33 Function evaluations: 69 {'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': 0.8716373269613511, 'space_group': 'Fm-3m', 'element': 'Rb', 'lattice_constant': 7.120806902647018, 'wyckoff_code': '4a', 'crystal_structure': 'fcc', 'iterations': 33, 'warnflag': 0, 'species': 'Rb" "Rb" "Rb" "Rb', 'func_calls': 69}