Electronic Structure of Strongly Correlated Systems
Figure 25
Crystal structure of . Vanadium atoms are shown as black spheres and oxygen atoms as grey spheres. (a) Layers of distorted VO5 pyramids (upper part) separated by sodium ions (dark grey spheres) and the atomic ordering of a single vanadiumoxide layer (lower part). (b) Projection of a single VO layer onto the -plane, excluding the apex oxygens. The ladder structure is illustrated by the dashed lines.
