Si bcc SW_LeeHwang_2012GGA_Si__MO_040570764911_001 3.334370717406273 Optimization terminated successfully. Current function value: -4.344352 Iterations: 85 Function evaluations: 225 C11 = 557.232025 +/- 0.007336 GPa C12 = 412.926766 +/- 0.005187 GPa C44 = 38.703799 +/- 0.001834 GPa B = 461.028519 +/- 0.004235 GPa