Power-law Temperature Dependent Hall Angle in the Normal State and its Correlation with Superconductivity in iron-pnictides

Y. J. Yan, A. F. Wang, X. G. Luo +6

We report Hall measurement of the normal state in K- and Co-doped BaFe${}_2$As${}_2$, as well NaFe${}_{1-x}$Co${}_x$As. We found that a power-law temperature dependence of Hall angle, cot$…