Sn diamond Sim_LAMMPS_MEAM_VellaChenStillinger_2017_Sn__SM_629915663723_000 6.303511045873165 Optimization terminated successfully. Current function value: -25.756462 Iterations: 90 Function evaluations: 242 C11 = 64.883409 +/- 0.007336 GPa C12 = 33.873122 +/- 0.005187 GPa C44 = 42.581286 +/- 0.001834 GPa B = 44.209884 +/- 0.004235 GPa