Na fcc Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Na__MO_707981543254_002 5.54667688906
Optimization terminated successfully.
         Current function value: -3.997903
         Iterations: 70
         Function evaluations: 182

C11 =     7.925889 +/-     0.007336 GPa
C12 =     5.510886 +/-     0.005187 GPa
C44 =     5.648568 +/-     0.001834 GPa
B   =     6.315887 +/-     0.004235 GPa