Cl fcc Sim_LAMMPS_EIM_Zhou_2010_BrClCsFIKLiNaRb__SM_259779394709_000 6.666834086179733 Optimization terminated successfully. Current function value: -5.026508 Iterations: 1064 Function evaluations: 3175 C11 = 18.225088 +/- 0.007336 GPa C12 = 9.112573 +/- 0.005187 GPa C44 = 9.112907 +/- 0.001834 GPa B = 12.150078 +/- 0.004235 GPa