element: Si lattice type: sc modelname: ThreeBodyBondOrder_PPM_PurjaPunMishin_2017_Si__MO_566683736730_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -4.345084 Iterations: 25 Function evaluations: 50 {'lattice_constant': 2.5007548481225967, 'cohesive_energy': 4.345084409682703, 'element': 'Si', 'species': 'Si', 'crystal_structure': 'sc', 'space_group': 'Pm-3m', 'wyckoff_code': '1a', 'basis_atoms': '[[0.0 0.0 0.0]]', 'iterations': 25, 'func_calls': 50, 'warnflag': 0, 'repeat': 0}