Nb diamond MEAM_LAMMPS_LeeBaskesKim_2001_Nb__MO_802302521552_000 5.425685524940491 Warning: Maximum number of iterations has been exceeded. C11 = -3203279.579771 +/- 0.007336 GPa C12 = 85.810522 +/- 0.005187 GPa C44 = -1201242.915474 +/- 0.001834 GPa B = -1067702.652909 +/- 0.004235 GPa