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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2009, Volume 89, Issue 9, Pages 545–549
(Mi jetpl422)
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This article is cited in 28 scientific papers (total in 28 papers)
CONDENSED MATTER
Direct evidence for off-centering of Mn impurity in SrTiO$_3$
A. I. Lebedeva, I. A. Sluchinskayaa, A. Erkob, V. F. Kozlovskiic a M. V. Lomonosov Moscow State University, Faculty of Physics
b BESSY GmbH, 12489 Berlin, Germany
c M. V. Lomonosov Moscow State University, Department of Chemistry
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.
Received: 18.03.2009
Citation:
A. I. Lebedev, I. A. Sluchinskaya, A. Erko, V. F. Kozlovskii, “Direct evidence for off-centering of Mn impurity in SrTiO$_3$”, Pis'ma v Zh. Èksper. Teoret. Fiz., 89:9 (2009), 545–549; JETP Letters, 89:9 (2009), 457–460
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https://www.mathnet.ru/eng/jetpl422 https://www.mathnet.ru/eng/jetpl/v89/i9/p545
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Abstract page: | 236 | Full-text PDF : | 80 | References: | 45 |
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