Na fcc Sim_LAMMPS_EIM_Zhou_2010_BrClCsFIKLiNaRb__SM_259779394709_000 5.499005943536759 Optimization terminated successfully. Current function value: -4.445758 Iterations: 1064 Function evaluations: 3168 C11 = 14.601425 +/- 0.007336 GPa C12 = 16.265129 +/- 0.005187 GPa C44 = 16.265513 +/- 0.001834 GPa B = 15.710561 +/- 0.004235 GPa