Si fcc Tersoff_LAMMPS_Tersoff_1988T2_Si__MO_245095684871_003 3.8605339527130127 Optimization terminated successfully. Current function value: -16.329961 Iterations: 83 Function evaluations: 215 C11 = 246.397332 +/- 0.007336 GPa C12 = 119.357639 +/- 0.005187 GPa C44 = 115.923013 +/- 0.001834 GPa B = 161.704203 +/- 0.004235 GPa