element: N lattice type: sc modelname: Tersoff_LAMMPS_NordAlbeErhart_2003_GaN__MO_612061685362_003 Detected that energy at a lattice constant of 2.5 Angstroms was equal to the isolated energy (i.e. no interactions). Shrinking box until energy becomes non-trivial... Attempting to perform relaxation using initial lattice constant guess of 1.25 Angstroms Optimization terminated successfully. Current function value: -2.231327 Iterations: 29 Function evaluations: 59 {'lattice_constant': 1.8378573507070541, 'cohesive_energy': 2.2313265636725523, 'element': 'N', 'species': 'N', 'crystal_structure': 'sc', 'space_group': 'Pm-3m', 'wyckoff_code': '1a', 'basis_atoms': '[[0.0 0.0 0.0]]', 'iterations': 29, 'func_calls': 59, 'warnflag': 0, 'repeat': 0}