Si bcc Tersoff_LAMMPS_Tersoff_1988T2_Si__MO_245095684871_003 3.1259388774633408 Optimization terminated successfully. Current function value: -7.973593 Iterations: 73 Function evaluations: 189 C11 = 496.957908 +/- 0.007336 GPa C12 = 95.561503 +/- 0.005187 GPa C44 = 76.845673 +/- 0.001834 GPa B = 229.360305 +/- 0.004235 GPa