Si sc SW_ZhangXieHu_2014OptimizedSW2_Si__MO_475612090600_005 2.5432868003845224 Optimization terminated successfully. Current function value: -3.029762 Iterations: 74 Function evaluations: 194 C11 = 421.538038 +/- 0.007336 GPa C12 = 66.573810 +/- 0.005187 GPa C44 = 39.525854 +/- 0.001834 GPa B = 184.895219 +/- 0.004235 GPa