element: Cu lattice type: fcc modelname: EAM_Dynamo_AcklandTichyVitek_1987v2_Cu__MO_762798677854_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -14.071934 Iterations: 34 Function evaluations: 68 {'lattice_constant': 3.615000367164612, 'cohesive_energy': 3.5179835633059637, 'element': 'Cu', 'species': 'Cu" "Cu" "Cu" "Cu', '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': 34, 'func_calls': 68, 'warnflag': 0, 'repeat': 0}