Figure 6
The scalar product of the polarization vector of the GM4− distortion, plotted as a function of composition according to the R3c structures reported by Yokota et al. (2009) and Corker et al. (1998), using as reference that for x = 0.4 from Yokota et al. Only the structures reported by Yokota et al. for samples synthesized by the sol–gel method are included, the results being similar for the others. The structural models of Corker et al. include a split Ti/Zr site. The figure shows the results if an average position for this split site is considered and if, instead, the position of the Ti is used. |