Enter a species (e.g. Al, Fe): Br 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): 2.334154948501713e-10, 3.811735136004183e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded. Finished calculation C11 = 4648.879319628047 GPa C12 = 1244.1916007288394 GPa B = 2379.087507028575 GPa