element: Ca lattice type: diamond modelname: EAM_IMD_BrommerGaehlerMihalkovic_2007_CaCd__MO_145183423516_003 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -3.780589 Iterations: 34 Function evaluations: 71 {'lattice_constant': 9.321124196052551, 'cohesive_energy': 0.47257364276464126, 'element': 'Ca', 'species': 'Ca" "Ca" "Ca" "Ca" "Ca" "Ca" "Ca" "Ca', 'crystal_structure': 'diamond', 'space_group': 'Fd-3m', 'wyckoff_code': '8a', 'basis_atoms': '[[0.0 0.0 0.0] [0.25 0.25 0.25] [0.5 0.5 0.0] [0.75 0.75 0.25] [0.5 0.0 0.5] [0.75 0.25 0.75] [0.0 0.5 0.5] [0.25 0.75 0.75]]', 'iterations': 34, 'func_calls': 71, 'warnflag': 0, 'repeat': 0}