Enter a species (e.g. Al, Fe): Fe Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: Sim_LAMMPS_TersoffZBL_HenrikssonBjorkasNordlund_2013_FeC__SM_473463498269_000 Enter hexagonal lattice constants 'a' and 'c' (m): 2.580895177882819e-10, 4.204164275513531e-10 Calculating isothermal bulk modulus Optimization terminated successfully. Current function value: -8.309014 Iterations: 71 Function evaluations: 186 Finished calculation C11 = 280.22647431024 GPa C12 = 104.33455982374964 GPa B = 162.96519798591308 GPa