Figure 6
Electron diffraction patterns obtained from a sample of CaTiO3. These are arbitrarily indexed with zone axes (a) [100], (b) [010], (c) [110], (d) [101] and (e) [111]. Superstructure reflections are indicated with: `a' = antiphase tilt reflection, `i' = in-phase tilt reflection, `c' = concert reflection/antiparallel cation displacement. |