Cu fcc Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Cu__MO_673777079812_004 3.653344042599202 Optimization terminated successfully. Current function value: -13.096756 Iterations: 78 Function evaluations: 207 C11 = 173.254044 +/- 0.007336 GPa C12 = 116.958005 +/- 0.005187 GPa C44 = 117.867460 +/- 0.001834 GPa B = 135.723351 +/- 0.004235 GPa