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Figure 3
Representations of (a), (b) room-temperature monoclinic, and (c), (d) high-temperature orthorhombic structures of Nd0.7Ti0.9Al0.1O3. The (Ti/Al)O6 groups are shown as octahedra, the Ti/Al ion being visible within them; the darker and lighter spheres outside these octahedra represent Nd in the fully and partly occupied layers, respectively. The unit cell is outlined in each case. The figures shown are perspective views along the x and z axis. The movements of O2− and Ti4+/Al3+ ions respectively towards and away from the fully occupied Nd layers result in an offset of the Ti/Al atom discernible in (a) and (c). The octahedral tilting in (a), (b) and (c) is also clearly visible. These figures were prepared using the computer program ATOMS (Dowty, 1999BB24).

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 62| Part 1| January 2006| Pages 60-67
doi:10.1107/S0108768105041066
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