Rearrangement of Sodium ordering and its effect on physical properties in $N{a}_{x}Co{O}_2$ system

T. Wu, K. Liu, H. Chen +4

We systematically study Raman spectroscopy of cleaved Na${}_x$CoO${}_2$ single crystals with 0.37 $\le$ x $\le$ 0.80. The Raman shift of A${}_{1g}$ mode is found to be linearly depende…