element: Ge lattice type: bcc 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: -0.049582 Iterations: 42 Function evaluations: 90 {'lattice_constant': 3.7027213349938393, 'cohesive_energy': 0.024791082082387523, 'element': 'Ge', 'species': 'Ge" "Ge', 'crystal_structure': 'bcc', 'space_group': 'Im-3m', 'wyckoff_code': '2a', 'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.5]]', 'iterations': 42, 'func_calls': 90, 'warnflag': 0, 'repeat': 0}