On the origin of non-monotonic doping dependence of the in-plane resistivity anisotropy in Ba(Fe${}_{1-x}{T}_x$)${}_2$As${}_2$, $T$ = Co, Ni and Cu

Hsueh-Hui Kuo, Jiun-Haw Chu, Scott C. Riggs +6

The in-plane resistivity anisotropy has been measured for detwinned single crystals of Ba(Fe${}_{1-x}$Ni${}_x$)${}_2$As${}_2$ and Ba(Fe${}_{1-x}$Cu${}_x$)${}_2$As${}_2$. The data reveal a non-mono…