Enter a species (e.g. Al, Fe): Cr Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Cr__MO_245813471114_003 Enter hexagonal lattice constants 'a' and 'c' (m): 2.561870280845908e-10, 4.180692225054933e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded. Finished calculation C11 = 402.53733715435527 GPa C12 = 101.01003501008513 GPa B = 201.51913572484185 GPa