N bcc Sim_LAMMPS_ReaxFF_WeismillerVanDuinLee_2010_BHNO__SM_327381922729_001 3.0529527813196182 Optimization terminated successfully. Current function value: -0.263007 Iterations: 71 Function evaluations: 193 C11 = 70.846368 +/- 0.007336 GPa C12 = 65.361369 +/- 0.005187 GPa C44 = -29.041915 +/- 0.001834 GPa B = 67.189702 +/- 0.004235 GPa