X-ray surface diffraction analysis of structural transformations on the (0 0 1) surface of oxidized SrTiO3

A. Kazimirov*, D. M. Goodner, M. J. Bedzyk, J. Bai, C. R. Hubbard

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Surface X-ray scattering was used to study structural modifications on the (0 0 1) surface of oxidized SrTiO3. Grazing incidence in-plane X-ray diffraction revealed a sequence of quasi-powder diffraction peaks originating from crystallites with nearly random in-plane orientation. This diffraction pattern is associated with micro-crystallites of irregular shape observed by atomic force microscopy on the surface after annealing in oxygen. Analysis based on available powder diffraction data identified these crystallites as monoclinic TiO. Different oxygen annealing treatments led to dramatic changes in the specular (0 0 L) crystal truncation rods indicating significant structural modifications in the underlying single crystal SrTiO3 surface layer.

Original languageEnglish (US)
Pages (from-to)L711-L716
JournalSurface Science
Volume492
Issue number1-2
DOIs
StatePublished - Oct 10 2001

Keywords

  • Alkaline earth metals
  • Atomic force microscopy
  • Surface segregation
  • Surface structure, morphology, roughness, and topography
  • X-ray scattering, diffraction, and reflection

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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