Ca fcc Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Ca__MO_887105884651_003 5.616867050528526 Optimization terminated successfully. Current function value: -6.838397 Iterations: 74 Function evaluations: 195 C11 = 21.582049 +/- 0.007336 GPa C12 = 14.450366 +/- 0.005187 GPa C44 = 14.607035 +/- 0.001834 GPa B = 16.827593 +/- 0.004235 GPa