Figure 11
HAADF-STEM image of the Pb0.529Bi0.438Fe1.034O2.736 material with 44 at.% Bi together with the EDX-elemental maps for Pb—L, Bi—L and Fe—K lines and the corresponding colour-mixed map. The arrowheads indicate the position and the orientation of the CS planes. Note that the (Pb, Bi) positions at the CS planes are depleted for Bi. Inside the perovskite blocks, Pb is concentrated at the centre, while Bi is at the periphery. |