Enter a species  (e.g. Al, Fe): Ar
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: LJ_Shifted_Bernardes_1958MedCutoff_Ar__MO_126566794224_003
Enter hexagonal lattice constants 'a' and 'c' (m): 3.711661823728253e-10, 6.061239246128129e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -0.173069
         Iterations: 74
         Function evaluations: 192

Finished calculation

C11 = 6.101833845890926 GPa
C12 = 1.6330496923070694 GPa
  B = 3.1226444101683546 GPa