K bcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 4.46878843755 Warning: Maximum number of function evaluations has been exceeded. C11 = 111.874021 +/- 0.007336 GPa C12 = 136.592579 +/- 0.005187 GPa C44 = 136.743193 +/- 0.001834 GPa B = 128.353060 +/- 0.004235 GPa