element: Si lattice type: sc modelname: ThreeBodyCluster_Gong_Gong_1993_Si__MO_407755720412_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -3.762623 Iterations: 26 Function evaluations: 53 {'lattice_constant': 2.688281834125519, 'cohesive_energy': 3.762623014916632, 'element': 'Si', 'species': 'Si', 'crystal_structure': 'sc', 'space_group': 'Pm-3m', 'wyckoff_code': '1a', 'basis_atoms': '[[0.0 0.0 0.0]]', 'iterations': 26, 'func_calls': 53, 'warnflag': 0, 'repeat': 0}