element: C lattice type: fcc modelname: Tersoff_LAMMPS_Tersoff_1990_SiC__MO_444207127575_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -14.231746 Iterations: 27 Function evaluations: 54 {'lattice_constant': 2.9289895594120026, 'cohesive_energy': 3.5579365239958594, 'element': 'C', 'species': 'C" "C" "C" "C', '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': 27, 'func_calls': 54, 'warnflag': 0, 'repeat': 0}