element: Cu lattice type: bcc modelname: EAM_Mendelev_2019_CuZr__MO_945018740343_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -6.472243 Iterations: 28 Function evaluations: 62 {'lattice_constant': 2.8960012197494507, 'cohesive_energy': 3.23612173673578, 'element': 'Cu', 'species': 'Cu" "Cu', 'crystal_structure': 'bcc', 'space_group': 'Im-3m', 'wyckoff_code': '2a', 'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.5]]', 'iterations': 28, 'func_calls': 62, 'warnflag': 0, 'repeat': 0}