Enter a species (e.g. Al, Fe): N 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): 1.381043866435613e-10, 2.255280173104061e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded. Finished calculation C11 = 111092.10264713533 GPa C12 = 29731.868034187326 GPa B = 56851.946238503326 GPa