Structure, magnetic, and electrical properties of bismuth niobates doped with d-elements: XVIII. Magnetic susceptibility and ESR spectra of Bi2BaNb2–2xMn2xO9–δ solid solutions with layered perovskite-like structure
- Autores: Chezhina N.1, Korolev D.1, Fedorova A.1, Zhuk N.2, Feltsinger L.2, Pryanishnikova E.2, Lutoev V.3, Makeev B.3
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Afiliações:
- St. Petersburg State University
- Sorokin Syktyvkar State University
- Institute of Geology, Komi Scientific Center, Ural Branch
- Edição: Volume 87, Nº 11 (2017)
- Páginas: 2525-2532
- Seção: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/221547
- DOI: https://doi.org/10.1134/S1070363217110032
- ID: 221547
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Resumo
On the basis of the data of ESR and magnetic susceptibility of Bi2BaNb2–2xMn2xO9–δ solid solutions with perovskite-like structure ferro- and aniferromagnetic bonded dimers, trimers, and tetramers of Mn(II), Mn(III), and Mn(IV) atoms in various valence states were found. The distribution of aggregates and exchange parameters in the clusters were calculated as a function of fraction x of manganese atoms in the solid solutions. In the ESR spectra of diluted solid solutions there are absorption bands with g-factors ~4.3 and 2.1 assigned to Mn(II) and Mn(IV) atoms.
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Sobre autores
N. Chezhina
St. Petersburg State University
Email: nzhuck@mail.ru
Rússia, Universitetskaya nab. 7–9, St. Petersburg, 199034
D. Korolev
St. Petersburg State University
Email: nzhuck@mail.ru
Rússia, Universitetskaya nab. 7–9, St. Petersburg, 199034
A. Fedorova
St. Petersburg State University
Email: nzhuck@mail.ru
Rússia, Universitetskaya nab. 7–9, St. Petersburg, 199034
N. Zhuk
Sorokin Syktyvkar State University
Autor responsável pela correspondência
Email: nzhuck@mail.ru
Rússia, Oktyabr’skii pr. 55, Syktyvkar, 167001
L. Feltsinger
Sorokin Syktyvkar State University
Email: nzhuck@mail.ru
Rússia, Oktyabr’skii pr. 55, Syktyvkar, 167001
E. Pryanishnikova
Sorokin Syktyvkar State University
Email: nzhuck@mail.ru
Rússia, Oktyabr’skii pr. 55, Syktyvkar, 167001
V. Lutoev
Institute of Geology, Komi Scientific Center, Ural Branch
Email: nzhuck@mail.ru
Rússia, Syktyvkar
B. Makeev
Institute of Geology, Komi Scientific Center, Ural Branch
Email: nzhuck@mail.ru
Rússia, Syktyvkar