JETP Letters

, Volume 89, Issue 9, pp 457–460 | Cite as

Direct evidence for off-centering of Mn impurity in SrTiO3

  • A. I. Lebedev
  • I. A. Sluchinskaya
  • A. Erko
  • V. F. Kozlovskii
Condensed Matter

Abstract

Mn-doped SrTiO3 samples (3% Mn) with different deviations from stoichiometry have been investigated using XAFS spectroscopy. It was shown the under various preparation conditions manganese atoms can sub-stitute A and B sites of the perovskite structure and are in them in different charge states. Impurity Mn4+ ions that substitute Ti sites occupy on-center position in the lattice, whereas Mn2+ ions that substitute Sr sites are off-center and are displaced from the lattice sites by a distance of 0.32Å.

PACS numbers

61.10.Ht 61.72.-y 77.84.Dy 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • A. I. Lebedev
    • 1
  • I. A. Sluchinskaya
    • 1
  • A. Erko
    • 2
  • V. F. Kozlovskii
    • 3
  1. 1.Faculty of PhysicsMoscow State UniversityMoscowRussia
  2. 2.BESSY GmbHBerlinGermany
  3. 3.Faculty of ChemistryMoscow State UniversityMoscowRussia

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