Si fcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 3.053088620305061 Optimization terminated successfully. Current function value: -105.703327 Iterations: 71 Function evaluations: 187 C11 = 6795.822874 +/- 0.007336 GPa C12 = 3877.316071 +/- 0.005187 GPa C44 = 3885.374844 +/- 0.001834 GPa B = 4850.151672 +/- 0.004235 GPa