Evidence for the formation of magnetic moments in the cuprate superconductor Hg${}_{0.8}$Cu${}_{0.2}$Ba${}_2$Ca${}_2$Cu${}_3$O${}_{8+\delta }$ below $T_c$ seen by NQR

H. Breitzke, I. Eremin, D. Manske +2

We report pure zero field nuclear magnetic resonance (NQR) measurements on the optimally doped three layer high-$T_c$-compounds HgBaCaCuO and HgBaCaCuO(F) with $T_c$ 134 K. Abo…