element: Ar lattice type: sc modelname: LJ_Truncated_Nguyen_2005_Ar__MO_398194508715_001 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -0.057555 Iterations: 30 Function evaluations: 60 {'lattice_constant': 3.6322689950466156, 'cohesive_energy': 0.05755538269635449, 'element': 'Ar', 'species': 'Ar', 'crystal_structure': 'sc', 'space_group': 'Pm-3m', 'wyckoff_code': '1a', 'basis_atoms': '[[0.0 0.0 0.0]]', 'iterations': 30, 'func_calls': 60, 'warnflag': 0, 'repeat': 0}