Rb bcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 4.8430149257183075 Optimization terminated successfully. Current function value: -7.454719 Iterations: 73 Function evaluations: 193 C11 = 74.586804 +/- 0.007336 GPa C12 = 91.066754 +/- 0.005187 GPa C44 = 91.167168 +/- 0.001834 GPa B = 85.573437 +/- 0.004235 GPa