element=lattice type=modelname=Si fcc SW_HauchHollandMarder_1999Brittle_Si__MO_119167353542_004

Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms

Optimization terminated successfully.
         Current function value: -10.121702
         Iterations: 31
         Function evaluations: 62
{'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]]', 'repeat': 0, 'cohesive_energy': 2.5304255679551084, 'space_group': 'Fm-3m', 'element': 'Si', 'lattice_constant': 4.32650376111269, 'wyckoff_code': '4a', 'crystal_structure': 'fcc', 'iterations': 31, 'warnflag': 0, 'species': 'Si" "Si" "Si" "Si', 'func_calls': 62}