Gd bcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 4.31468716264 Optimization terminated successfully. Current function value: -33.424732 Iterations: 73 Function evaluations: 189 C11 = 472.931305 +/- 0.007336 GPa C12 = 577.425452 +/- 0.005187 GPa C44 = 578.062151 +/- 0.001834 GPa B = 542.594069 +/- 0.004235 GPa