The anisotropy of oxygen vacancy migration in SrTiO.

Oxygen migration in perovskites is well known to occur via vacancies along the TiO octahedron edges. Ionic conduction depends further on the orientation of the crystal in the electric field. To study the anisotropy in cubic SrTiO single crystals, temperature-dependent electroformation measurements ranging from 11 °C to 50 °C have been conducted for representative crystallographic directions within the crystal system.

Crystallization dynamics and interface stability of strontium titanate thin films on silicon.

Different physical vapor deposition methods have been used to fabricate strontium titanate thin films. Within the binary phase diagram of SrO and TiO the stoichiometry ranges from Ti rich to Sr rich, respectively. The crystallization of these amorphous SrTiO layers is investigated by grazing-incidence X-ray diffraction using synchrotron radiation.