Rb diamond Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Rb__MO_754498969542_003 9.9355737865 Optimization terminated successfully. Current function value: -3.958973 Iterations: 70 Function evaluations: 182 C11 = -54003.067220 +/- 0.007336 GPa C12 = 1.688759 +/- 0.005187 GPa C44 = -40501.968564 +/- 0.001834 GPa B = -17999.896567 +/- 0.004235 GPa