element: Cu lattice type: diamond modelname: Sim_LAMMPS_MEAM_EtesamiAsadi_2018_Cu__SM_316120381362_001 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -22.059941 Iterations: 33 Function evaluations: 67 {'lattice_constant': 5.161517545580864, 'cohesive_energy': 2.7574926511640716, 'element': 'Cu', 'species': 'Cu" "Cu" "Cu" "Cu" "Cu" "Cu" "Cu" "Cu', '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': 33, 'func_calls': 67, 'warnflag': 0, 'repeat': 0}