Kr bcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 2.553598672151565 Optimization terminated successfully. Current function value: -0.275853 Iterations: 78 Function evaluations: 204 C11 = 18.827741 +/- 0.007336 GPa C12 = 22.987729 +/- 0.005187 GPa C44 = 23.013077 +/- 0.001834 GPa B = 21.601066 +/- 0.004235 GPa