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
- Авторы: 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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Учреждения:
- St. Petersburg State University
- Sorokin Syktyvkar State University
- Institute of Geology, Komi Scientific Center, Ural Branch
- Выпуск: Том 87, № 11 (2017)
- Страницы: 2525-2532
- Раздел: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/221547
- DOI: https://doi.org/10.1134/S1070363217110032
- ID: 221547
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Аннотация
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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N. Chezhina
St. Petersburg State University
Email: nzhuck@mail.ru
Россия, Universitetskaya nab. 7–9, St. Petersburg, 199034
D. Korolev
St. Petersburg State University
Email: nzhuck@mail.ru
Россия, Universitetskaya nab. 7–9, St. Petersburg, 199034
A. Fedorova
St. Petersburg State University
Email: nzhuck@mail.ru
Россия, Universitetskaya nab. 7–9, St. Petersburg, 199034
N. Zhuk
Sorokin Syktyvkar State University
Автор, ответственный за переписку.
Email: nzhuck@mail.ru
Россия, Oktyabr’skii pr. 55, Syktyvkar, 167001
L. Feltsinger
Sorokin Syktyvkar State University
Email: nzhuck@mail.ru
Россия, Oktyabr’skii pr. 55, Syktyvkar, 167001
E. Pryanishnikova
Sorokin Syktyvkar State University
Email: nzhuck@mail.ru
Россия, Oktyabr’skii pr. 55, Syktyvkar, 167001
V. Lutoev
Institute of Geology, Komi Scientific Center, Ural Branch
Email: nzhuck@mail.ru
Россия, Syktyvkar
B. Makeev
Institute of Geology, Komi Scientific Center, Ural Branch
Email: nzhuck@mail.ru
Россия, Syktyvkar