Unconventional Superconductivity and Electron Correlations in Cobalt Oxyhydrate Na${}_{0.35}$CoO${}_2$$\cdot y$H${}_2$O

T. Fujimoto, G. -q. Zheng, Y. Kitaoka +3

We report a precise ${}^{59}$Co nuclear quadrupolar resonance (NQR) measurement on the recently discovered cobalt oxyhydrate Na${}_{0.35}$CoO${}_2$$\cdot y$H${}_2$O superconductor from…