Rb fcc Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Rb__MO_147245690895_003 7.12080690265 Optimization terminated successfully. Current function value: -3.486549 Iterations: 70 Function evaluations: 186 C11 = 2.467223 +/- 0.007336 GPa C12 = 1.866269 +/- 0.005187 GPa C44 = 1.924649 +/- 0.001834 GPa B = 2.066587 +/- 0.004235 GPa