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- Title
Charge state of manganese ions and the nonstoichiometry of Ca<sub>1 − x</sub>La<sub> y</sub>MnO<sub>3 − δ</sub> single crystals.
- Authors
Galakhov, V. R.; Gizhevskii, B. A.; Elokhina, L. V.; Loshkareva, N. N.; Naumov, S. V.; Raekers, M.; Neumann, M.; Balbashov, A. M.
- Abstract
The charge states and effective spins of manganese ions in nonstoichiometric single crystals of Ca1 − xLa yMnO3 − δ ( x = 0, 0.05, 1) manganites have been determined from the exchange splitting of Mn 3 s X-ray photoelectron spectra. The chemical composition of the manganite samples under investigation, including the concentration of oxygen, has been determined using the data of the X-ray microanalysis of cations. It has been found that the manganite single crystals under investigation have large defectiveness in both the cation and oxygen sublattices. The efficiency of the complex use of 3 s photoelectron spectroscopy and X-ray microanalysis in the determination of the charge state of manganese ions and violations of stoichiometry in doped and defected manganites has been demonstrated.
- Subjects
MANGANESE; X-ray photoelectron spectroscopy; PHOTOELECTRON spectroscopy; STOICHIOMETRY; MANGANITE
- Publication
JETP Letters, 2010, Vol 91, Issue 3, p129
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364010030069