N sc Sim_LAMMPS_Polymorphic_NordAlbeErhart_2003_GaN__SM_333071728528_000 1.83785719424 Optimization terminated successfully. Current function value: -2.231327 Iterations: 70 Function evaluations: 191 C11 = 550.053508 +/- 0.007336 GPa C12 = -0.000000 +/- 0.005187 GPa C44 = 455.521352 +/- 0.001834 GPa B = 183.351169 +/- 0.004235 GPa