Figure 7: Structure parameters of Nax[Cr0.6Ti0.4]O2.

(a) Cell parameters of Nax[Cr0.6Ti0.4]O2 as a function of Na content at 300 K; inset shows relative change of cell parameters and cell volume with respect to those for the parent Na0.6[Cr0.6Ti0.4]O2 material; (b) Na+ ion distribution over Na1 and Na2 sites as a function of x; (c) Na1 and Na2 displacement from the centres of prisms as a function of x.