H fcc MEAM_LAMMPS_LeeJang_2007_FeH__MO_095610951957_000 3.324293375015259 Optimization terminated successfully. Current function value: -0.162924 Iterations: 69 Function evaluations: 179 C11 = 1.205029 +/- 0.007336 GPa C12 = 9.761975 +/- 0.005187 GPa C44 = -8.225907 +/- 0.001834 GPa B = 6.909660 +/- 0.004235 GPa