Ra fcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 6.07865345478 Warning: Maximum number of function evaluations has been exceeded. C11 = 463.857883 +/- 0.007336 GPa C12 = 264.651339 +/- 0.005187 GPa C44 = 265.201399 +/- 0.001834 GPa B = 331.053521 +/- 0.004235 GPa