Figure 9
Coordination (distances in Å) as functions of internal t1 and t2 coordinates for (Pb,Sb) atoms in the (PbySb1 − yS) Q subsystem. (a) Inter- and intra-layer (Pb,Sb)—S distances for the final structure model (t2 = 0.8); (b) and (c) evolution of the inter-layer (Pb,Sb)—S1 distance as a function of the refinement stages (see text). |