Pb bcc Morse_Shifted_GirifalcoWeizer_1959HighCutoff_Pb__MO_370271093517_004 3.922346949577332 Optimization terminated successfully. Current function value: -4.020902 Iterations: 70 Function evaluations: 180 C11 = 43.122375 +/- 0.007336 GPa C12 = 42.469871 +/- 0.005187 GPa C44 = 42.571528 +/- 0.001834 GPa B = 42.687372 +/- 0.004235 GPa