Si fcc Tersoff_LAMMPS_Tersoff_1988T3_Si__MO_186459956893_002 3.89741842449 Optimization terminated successfully. Current function value: -15.475215 Iterations: 71 Function evaluations: 190 C11 = 1226.463342 +/- 0.007336 GPa C12 = 1187.853007 +/- 0.005187 GPa C44 = 204.290066 +/- 0.001834 GPa B = 1200.723119 +/- 0.004235 GPa