Orientation-dependent surface composition of in situ annealed strontium titanate

Abstract

The surface composition of polycrystalline niobium-doped strontium titanate (SrTiO3 : Nb) is studied using X-ray photoelectron emission microscopy (XPEEM) for many grain orientations in order to characterise the surface chemistry with high spatial resolution. The surface sensitivity is maximised by the use of soft X-ray synchrotron radiation (SR). The grain orientation is determined by electron backscattering diffraction (EBSD). Stereographic plots are used to show the correlation between surface composition and orientation for several grains. Predominant surface terminations are assigned to major orientations.

arXiv comment4 Pages, 12 Figures

Cited by in corpus (8)

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• Surface enhanced covalency and Madelung potentials in Nb doped SrTiO${}_3$ (100), (110) and (111) single crystals
• Sample-to-sample fluctuations of electrostatic forces generated by quenched charge disorder
• Electromagnetic fluctuation-induced interactions in randomly charged slabs
• Ion-mediated interactions between net-neutral slabs: Weak and strong disorder effects