O fcc Sim_LAMMPS_ReaxFF_BroqvistKullgrenWolf_2015_CeO__SM_063950220736_000 2.8681209534406658 Optimization terminated successfully. Current function value: -2.959514 Iterations: 69 Function evaluations: 183 C11 = 112449.301560 +/- 0.007336 GPa C12 = 111773.809937 +/- 0.005187 GPa C44 = 575.247686 +/- 0.001834 GPa B = 111998.973811 +/- 0.004235 GPa