Ca diamond Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Ca__MO_887105884651_004 8.39454288482667 Optimization terminated successfully. Current function value: -6.368884 Iterations: 69 Function evaluations: 178 C11 = -189379.023878 +/- 0.007336 GPa C12 = 6.936204 +/- 0.005187 GPa C44 = -142035.980426 +/- 0.001834 GPa B = -63121.717157 +/- 0.004235 GPa