Si diamond MEAM_LAMMPS_HuangDongLiu_2018_Si__MO_050147023220_000 5.430999547243119 Optimization terminated successfully. Current function value: -37.040000 Iterations: 1064 Function evaluations: 3167 C11 = 168.365465 +/- 0.007336 GPa C12 = 62.353841 +/- 0.005187 GPa C44 = 52.081843 +/- 0.001834 GPa B = 97.691049 +/- 0.004235 GPa