Kondo-like mass enhancement of Dirac fermion in iron pnictides Ba(Fe${}_{1-x}$Mn${}_x$As)${}_2$

T. Urata, Y. Tanabe, K. K. Huynh +4

The effect of Mn substitution, acting as a magnetic impurity for Fe, on the Dirac cone was investigated in Ba(Fe${}_{1-x}$Mn${}_x$As)${}_2$. Both magnetoresistance and Hall resistivity s…