N fcc Sim_LAMMPS_Polymorphic_BereSerra_2006_GaN__SM_518345582208_000 2.63598811626 Warning: Maximum number of function evaluations has been exceeded. C11 = 1924.974265 +/- 0.007336 GPa C12 = 2039.985911 +/- 0.005187 GPa C44 = 250.395274 +/- 0.001834 GPa B = 2001.648695 +/- 0.004235 GPa