Enter a species (e.g. Al, Fe): Y Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 Enter hexagonal lattice constants 'a' and 'c' (m): 3.695745363410246e-10, 6.035247188103467e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded. Finished calculation C11 = 1640.196502523737 GPa C12 = 438.9700898754275 GPa B = 839.3788940915307 GPa