Fe bcc Sim_LAMMPS_TersoffZBL_HenrikssonBjorkasNordlund_2013_FeC__SM_473463498269_000 2.88864569366 Optimization terminated successfully. Current function value: -8.357316 Iterations: 75 Function evaluations: 198 C11 = 218.668105 +/- 0.007336 GPa C12 = 142.270429 +/- 0.005187 GPa C44 = 129.954253 +/- 0.001834 GPa B = 167.736321 +/- 0.004235 GPa