Ca bcc Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Ca__MO_562200212426_002 4.41941994429 Optimization terminated successfully. Current function value: -3.650573 Iterations: 69 Function evaluations: 181 C11 = 18.509624 +/- 0.007336 GPa C12 = 16.238882 +/- 0.005187 GPa C44 = 16.315605 +/- 0.001834 GPa B = 16.995796 +/- 0.004235 GPa