Cu fcc Sim_LAMMPS_BOP_ZhouWardFoster_2015_CCu__SM_784926969362_000 3.6073834002 Optimization terminated successfully. Current function value: -33.082889 Iterations: 74 Function evaluations: 194 C11 = 968.454406 +/- 0.007336 GPa C12 = 510.974718 +/- 0.005187 GPa C44 = 467.845472 +/- 0.001834 GPa B = 663.467947 +/- 0.004235 GPa