Na bcc Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Na__MO_636041334617_003 4.322974419593815
Optimization terminated successfully.
         Current function value: -2.218191
         Iterations: 70
         Function evaluations: 184

C11 =     7.416563 +/-     0.007336 GPa
C12 =     5.803020 +/-     0.005187 GPa
C44 =     5.864499 +/-     0.001834 GPa
B   =     6.340868 +/-     0.004235 GPa