Pb fcc Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Pb__MO_958424213898_004 4.939586490392685 Optimization terminated successfully. Current function value: -8.067586 Iterations: 84 Function evaluations: 226 C11 = 56.050011 +/- 0.007336 GPa C12 = 36.993947 +/- 0.005187 GPa C44 = 37.183085 +/- 0.001834 GPa B = 43.345968 +/- 0.004235 GPa