Effect of Zn substitution for Cu on Ca${}_{2-x}$Na${}_x$CuO${}_2$Cl${}_2$ near the hole concentration of 1/8 per Cu

K. H. Satoh, M. Hiraishi, M. Miyazaki +8

A weakening of superconductivity upon substitution of Cu by Zn (0.5~1 %) is observed in a high-T_c cuprate, Ca_{2-x}Na_xCuO2Cl2, near the hole concentration of 1/8 per Cu. The supe…