Fig. 5. (A) and (B) are the experimentally obtained O-K and Ti-L edges from a Bi-excess area. (C) and (D) are the experimentally obtained O-K and Ti-L edges from a Na-excess area. (E) shows the calculated O-K edge structures from Bi-excess models: pure Bi-excess, Bi-excess with a A-site vacancy, and Bi-excess with a titanium vacancy. (F) shows the calculated O-K edge structures from Na-excess models: Na-excess NBT, Na-excess NBT with an oxygen vacancy, and Na-excess NBT with a titanium vacancy. NBT, Na1/2Bi1/2TiO3.

Applied Microscopy 2012;42:164-73

© 2012 Applied Microscopy