element: Ge lattice type: sc modelname: ThreeBodyBondOrder_KDS_KhorDasSarma_1988_Ge__MO_216597146527_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -1.030759 Iterations: 27 Function evaluations: 54 {'lattice_constant': 2.8518103510141373, 'cohesive_energy': 1.0307590357240692, 'element': 'Ge', 'species': 'Ge', 'crystal_structure': 'sc', 'space_group': 'Pm-3m', 'wyckoff_code': '1a', 'basis_atoms': '[[0.0 0.0 0.0]]', 'iterations': 27, 'func_calls': 54, 'warnflag': 0, 'repeat': 0}