element:
Ta
lattice type:
fcc
modelname:
SNAP_ThompsonSwilerTrott_2015_Ta__MO_359768485367_000

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


Failed to perform relaxation using initial lattice constant guess of 2.5 Angstroms
Exception message:
Attempted to evaluate energy at lattice spacing ([0.75]) below the minimum allowed value (0.863994285728042).  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.


Attempting to perform relaxation using initial lattice constant guess of 3.0 Angstroms

Optimization terminated successfully.
         Current function value: -13.076797
         Iterations: 30
         Function evaluations: 61
{'lattice_constant': 4.267698115110399, 'cohesive_energy': 3.269199320264809, 'element': 'Ta', 'species': 'Ta" "Ta" "Ta" "Ta', '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}