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- Title
Direct evidence for off-centering of Mn impurity in SrTiO<sub>3</sub>.
- Authors
Lebedev, A. I.; Sluchinskaya, I. A.; Erko, A.; Kozlovskii, V. F.
- 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.
- Subjects
SPECTRUM analysis; STOICHIOMETRY; PEROVSKITE; IONS; MANGANESE
- Publication
JETP Letters, 2009, Vol 89, Issue 9, p457
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364009090070