Chemical structure of grain-boundary layer in SrTiO<sub>3</sub> and its segregation-induced transition: A continuum interface approach

Chemical structure of grain-boundary layer in SrTiO₃ and its segregation-induced transition: A continuum interface approach

Gu Hui^†

(color online) (a) and (b) EELS profiling for two Σ5 (310)/[001] GBs in an SrTiO₃ bicrystal doped with 0.5 wt% of Fe₂O₃: elemental (top) and ELNES profiles (middle, bottom) of Ti–L_2,3 and O–K edges, respectively. The second GB (b) may originate from partial fracture along its plane; refer to text for more details.