Anisotropy reversal of in-plane resistivity in hole doped Ba(Fe$_{1-x}$TM$_x$)$_2$As$_2$ (TM=Mn, Cr)

We investigated the in-plane anisotropy of resistivity across the magneto-structural transition in hole doped Ba(Fe$_{1-x}$TM$_x$)$_2$As$_2$ (TM=Mn, Cr) with detwinned single crystals. When the Mn and Cr-doping levels were low, the resistivity along the a-axis with antiferromagnetic spin alignment was smaller than that along the b-axis with ferromagnetic spin alignment, which is similar to that of electron doped BaFe$_2$As$_2$ [1]. However when x exceeds 0.09 in Cr-doped case, we observed the opposite resistivity anisotropy like that of (Ba$_{1-x}$K$_x$)Fe$_2$As$_2$ [2]. We will discuss the origin of the anisotropic resistivity and the difference between the effect of Cr and K doping. \\[4pt] [1] J. H. Chu et al., Science 329, 824 (2010)\\[0pt] [2] E. C. Blomberg et al., Nat. Commun. 4, 1914 (2013)