C diamond Sim_LAMMPS_ReaxFF_XiaoShiHao_2017_PHOC__SM_424780295507_000 3.622655242681504 Optimization terminated successfully. Current function value: -68.617929 Iterations: 74 Function evaluations: 194 C11 = 10053.253770 +/- 0.007336 GPa C12 = 9681.252253 +/- 0.005187 GPa C44 = 346.102053 +/- 0.001834 GPa B = 9805.252759 +/- 0.004235 GPa