Fe fcc Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Fe__MO_331285495617_004 3.646125234663486 Optimization terminated successfully. Current function value: -15.627141 Iterations: 85 Function evaluations: 225 C11 = 215.392489 +/- 0.007336 GPa C12 = 145.199588 +/- 0.005187 GPa C44 = 146.272481 +/- 0.001834 GPa B = 168.597221 +/- 0.004235 GPa