Suppression of $T_c$ by Zn impurity in the electron-type LaFe${}_{0.925-y}$Co${}_{0.075}$Zn${}_y$AsO system

Yuke Li, Jun Tong, Qian Tao +2

The effect of non-magnetic Zn impurity on superconductivity in electron-type pnictide superconductor LaFe${}_{0.925-y}$Co${}_{0.075}$Zn${}_y$AsO is studied systematically. The optimally…