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Ultramicroscopy. 2009 Dec;110(1):26-32. doi: 10.1016/j.ultramic.2009.09.001. Epub 2009 Sep 17.

ELNES study of chemical solution deposited SrO(SrTiO(3))(n) Ruddlesden-Popper films: experiment and simulation.

Ultramicroscopy

T Riedl, T Gemming, T Weissbach, G Seifert, E Gutmann, M Zschornak, D C Meyer, S Gemming

Affiliations

  1. IFW Dresden, PF 270116, D-01171 Dresden, Germany. [email protected]

PMID: 19818559 DOI: 10.1016/j.ultramic.2009.09.001

Abstract

This article analyzes electron energy-loss near-edge fine structures of the SrO(SrTiO(3))(n=1) Ruddlesden-Popper system and of the parent compounds SrTiO(3) and SrO by comparison with first principles calculations. For that, the fine structures of chemical solution deposited Ruddlesden-Popper films have been experimentally recorded by means of transmission electron microscopy. Moreover, density of states computations using an all-electron density-functional code have been performed. It is shown that the appearance and shape of the experimental O-K and Ti-L(2,3) fine structure features result from the crystallography-dependent electronic structure of the investigated oxides, which display technologically interesting dielectric as well as lattice-structural properties.

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