element: Yb lattice type: bcc modelname: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -2.075935 Iterations: 32 Function evaluations: 64 {'lattice_constant': 4.1165657714009285, 'cohesive_energy': 1.037967384342593, 'element': 'Yb', 'species': 'Yb" "Yb', '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': 64, 'warnflag': 0, 'repeat': 0}