element: K lattice type: bcc modelname: Morse_Shifted_GirifalcoWeizer_1959LowCutoff_K__MO_749732139672_003 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -1.670402 Iterations: 32 Function evaluations: 66 {'lattice_constant': 5.334010653197765, 'cohesive_energy': 0.835200972291641, 'element': 'K', 'species': 'K" "K', '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': 32, 'func_calls': 66, 'warnflag': 0, 'repeat': 0}