Tunneling spectroscopy of Na${}_x$CoO${}_2$ and Na${}_x$CoO${}_2$$\cdot$ yH${}_2$O

L. Shan, H. Gao, Y. G. Shi +5

The single electron tunneling spectroscopy on superconductor Na${}_x$CoO${}_2$$\cdot$ yH${}_2$O and its starting compound Na${}_x$CoO${}_2$ has been studied with point-contact method. Th…