Enter a species (e.g. Al, Fe): Au 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): 2.645366873015487e-10, 4.319952159611479e-10 Calculating isothermal bulk modulus Optimization terminated successfully. Current function value: -38.401152 Iterations: 71 Function evaluations: 187 Finished calculation C11 = 3736.767906314137 GPa C12 = 1000.0809269240871 GPa B = 1912.3099200541037 GPa