Determining the energetics of vicinal perovskite oxide surfaces

Werner A. Wessels; Tjeerd R. J. Bollmann; Gertjan Koster; Harold J. W. Zandvliet; Guus Rijnders

doi:10.1063/1.4982886

Determining the energetics of vicinal perovskite oxide surfaces

Materials Science 2017-05-09 v1

Authors: Werner A. Wessels , Tjeerd R. J. Bollmann , Gertjan Koster , Harold J. W. Zandvliet , Guus Rijnders

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Abstract

The energetics of vicinal SrTiO $_3$ (001) and DyScO $_3$ (110), prototypical perovskite vicinal surfaces, has been studied using topographic atomic force microscopy imaging. The kink formation and strain relaxation energies are extracted from a statistical analysis of the step meandering. Both perovskite surfaces have very similar kink formation energies and exhibit a similar triangular step undulation. Our experiments suggest that the energetics of perovskite oxide surfaces is mainly governed by the local oxygen coordination.

Keywords

vicinal perovskite surfaces step meandering kink formation energy strain relaxation atomic force microscopy oxygen coordination

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@article{arxiv.1612.01381,
  title  = {Determining the energetics of vicinal perovskite oxide surfaces},
  author = {Werner A. Wessels and Tjeerd R. J. Bollmann and Gertjan Koster and Harold J. W. Zandvliet and Guus Rijnders},
  journal= {arXiv preprint arXiv:1612.01381},
  year   = {2017}
}

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16 pages, 4 figures

Determining the energetics of vicinal perovskite oxide surfaces

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