Na bcc Sim_LAMMPS_ReaxFF_BrugnoliMiyataniAkaji_SiCeNaClHO_2023__SM_282799919035_000 5.576890356838703 Optimization terminated successfully. Current function value: -0.065256 Iterations: 72 Function evaluations: 191 C11 = 0.441671 +/- 0.007336 GPa C12 = 0.490483 +/- 0.005187 GPa C44 = 0.490487 +/- 0.001834 GPa B = 0.474212 +/- 0.004235 GPa