Hf fcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 4.813423126935959 Optimization terminated successfully. Current function value: -111.915403 Iterations: 86 Function evaluations: 230 C11 = 1836.112254 +/- 0.007336 GPa C12 = 1047.582858 +/- 0.005187 GPa C44 = 1049.760201 +/- 0.001834 GPa B = 1310.425990 +/- 0.004235 GPa