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Fizika Tverdogo Tela, 2023, Volume 65, Issue 4, Pages 629–635
DOI: https://doi.org/10.21883/FTT.2023.04.55301.18 (Mi ftt10646) 		 
This article is cited in 1 scientific paper (total in 1 paper)

Lattice dynamics

Low-temperature Mossbauer studies of substituted La$_{0.67}$Sr$_{0.33}$FeO$_{3-\gamma}$ lanthanum ferrite

V. D. Sedykha, V. S. Rusakovb, T. V. Gubaidulinab

a Osipyan Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, Russia
b Lomonosov Moscow State University, Moscow, Russia
Full-text PDF (653 kB) Citations (1)
DOI: https://doi.org/10.21883/FTT.2023.04.55301.18
Abstract: The valence states of Fe atoms and the formation of oxygen vacancies in substituted La$_{0.67}$Sr$_{0.33}$FeO$_{3-\gamma}$ orthoferrite have been studied in detail by low-temperature Mossbauer spectroscopy under oxygen removal. It has been shown that the averaged valence state of Fe atoms is not revealed with a decreasing measurement temperature. This makes it possible to reveal Fe$^{4+}$ ions. The Analysis of the obtained data allows us to conclude that the presence of several Zeeman sextets associated with Fe$^{3+}$ ions is related to the appearance of oxygen vacancies and Fe$^{4+}$ ions in the nearest ionic surrounding of Fe ions. Using the Mossbauer data, the number of oxygen vacancies and oxygen ions has been determined for all the studied samples depending on the vacuum annealing temperature.
Keywords: perovskites, substituted lanthanum ferrites, X-ray diffraction analysis, Mossbauer spectroscopy, Fe valence states, oxygen vacancies.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation
This work was performed in the framework of the state task of the Ministry of Education and Science of the Russian Federation.
Received: 13.02.2023
Revised: 13.02.2023
Accepted: 15.02.2023
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: V. D. Sedykh, V. S. Rusakov, T. V. Gubaidulina, “Low-temperature Mossbauer studies of substituted La$_{0.67}$Sr$_{0.33}$FeO$_{3-\gamma}$ lanthanum ferrite”, Fizika Tverdogo Tela, 65:4 (2023), 629–635
Citation in format AMSBIB
\Bibitem{SedRusGub23}
\by V.~D.~Sedykh, V.~S.~Rusakov, T.~V.~Gubaidulina
\paper Low-temperature Mossbauer studies of substituted La$_{0.67}$Sr$_{0.33}$FeO$_{3-\gamma}$ lanthanum ferrite
\jour Fizika Tverdogo Tela
\yr 2023
\vol 65
\issue 4
\pages 629--635
\mathnet{http://mi.mathnet.ru/ftt10646}
\crossref{https://doi.org/10.21883/FTT.2023.04.55301.18}
\elib{https://elibrary.ru/item.asp?id=53737624}
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    • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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