Enter a species (e.g. Al, Fe): Mo Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Mo__MO_534363225491_003 Enter hexagonal lattice constants 'a' and 'c' (m): 2.796393383170872e-10, 4.567029097012602e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded. Finished calculation C11 = 587.8493670094889 GPa C12 = 148.11356521470924 GPa B = 294.6921658129691 GPa