element: Fe lattice type: bcc modelname: Sim_LAMMPS_TersoffZBL_HenrikssonBjorkasNordlund_2013_FeC__SM_473463498269_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -8.357316 Iterations: 27 Function evaluations: 55 {'lattice_constant': 2.8886456936597824, 'cohesive_energy': 4.178658196938472, 'element': 'Fe', 'species': 'Fe" "Fe', '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': 27, 'func_calls': 55, 'warnflag': 0, 'repeat': 0}