Nb bcc MEAM_LAMMPS_KimJungLee_2010_FeNbC__MO_072689718616_002 2.863646470010281 C11 = 213.708264 +/- 0.007336 GPa C12 = 121.722498 +/- 0.005187 GPa C44 = 32.357315 +/- 0.001834 GPa B = 152.384420 +/- 0.004235 GPa