Si diamond SW_LeeHwang_2012LDA_Si__MO_517338295712_000 5.386678107082844 Optimization terminated successfully. Current function value: -23.945920 Iterations: 1064 Function evaluations: 3169 C11 = 116.226102 +/- 0.007336 GPa C12 = 49.504873 +/- 0.005187 GPa C44 = 47.208840 +/- 0.001834 GPa B = 71.745283 +/- 0.004235 GPa