Ca bcc Morse_Shifted_GirifalcoWeizer_1959HighCutoff_Ca__MO_159753408472_002 4.413383439183235 Optimization terminated successfully. Current function value: -3.698094 Iterations: 72 Function evaluations: 185 C11 = 18.385816 +/- 0.007336 GPa C12 = 16.267490 +/- 0.005187 GPa C44 = 16.345471 +/- 0.001834 GPa B = 16.973599 +/- 0.004235 GPa