Complex magnetic differentiation of cobalts in Na${}_x$CoO${}_2$ with 22K Néel temperature

I. R. Mukhamedshin, I. F. Gilmutdinov, M. A. Salosin +1

Single crystals of sodium cobaltates Na${}_x$CoO${}_2$ with $x\approx 0.8$ were grown by the floating zone technique. Using electrochemical Na de-intercalation method we reduced t…