element: Fe lattice type: fcc modelname: MEAM_LAMMPS_LeeJang_2007_FeH__MO_095610951957_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -16.901878 Iterations: 30 Function evaluations: 61 {'lattice_constant': 3.567322999238968, 'cohesive_energy': 4.225469552584152, 'element': 'Fe', 'species': 'Fe" "Fe" "Fe" "Fe', 'crystal_structure': 'fcc', 'space_group': 'Fm-3m', 'wyckoff_code': '4a', 'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.0] [0.5 0.0 0.5] [0.0 0.5 0.5]]', 'iterations': 30, 'func_calls': 61, 'warnflag': 0, 'repeat': 0}