Cu fcc Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Cu__MO_173787283511_004 3.6131481304764748 Optimization terminated successfully. Current function value: -13.979060 Iterations: 69 Function evaluations: 180 C11 = 174.529899 +/- 0.007336 GPa C12 = 122.383396 +/- 0.005187 GPa C44 = 123.468742 +/- 0.001834 GPa B = 139.765564 +/- 0.004235 GPa