Enter a species  (e.g. Al, Fe): Na
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: EAM_Dynamo_Mendelev_2015_Na__MO_094065024556_000
Enter hexagonal lattice constants 'a' and 'c' (m): 2.143545541465846e-10, 3.496358090343085e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -16.705446
         Iterations: 72
         Function evaluations: 186

Finished calculation

C11 = 4340.046473071395 GPa
C12 = 3820.457598958539 GPa
  B = 3993.6538903294904 GPa