Surface-near modifications of SrTiO3 local symmetry due to nitrogen implantation investigated by grazing incidence XANES
Surface-near modifications of SrTiO3 local symmetry due to nitrogen implantation investigated by grazing incidence XANES
Stöcker, H.; Zschornak, M.; Richter, C.; Hanzig, J.; Hanzig, F.; Hinze, V.; Potzger, K.; Gemming, S.; Meyer, D. C.
Nitrogen ion implantation into strontium titanate single crystals causes a slight shift of the Ti-K edge position compared to pristine SrTiO3 and a strong increase of the second pre-edge peak in X-ray absorption near-edge spectroscopy (XANES) using graz- ing incidence geometry. Calculations by a finite difference method demonstrate that the strong increase of the second pre-edge fea- ture in the defect distorted phase can be attributed to a static displacement of the Ti atom relative to the surrounding oxygen octahedron.
Keywords: ferroic functional oxides; density functional theory; doping; strontium titanate
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
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Cited 9 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-20540