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  1. No Access

    Article

    Structure of the Local Environment and Hyperfine Interactions of 57Fe Probe Nuclei in AMnO3 (A = Sc, In)

    The results of a Mössbauer study of hyperfine interactions of 57Fe probe nuclei in isostructural hexagonal manganites h-ScMnO3 and h-InMnO3 are presented. The results of measurements of the Mössbauer spectra at T

    A. V. Sobolev, S. Šandalova, M. N. Smirnova… in Russian Journal of Inorganic Chemistry (2023)

  2. No Access

    Article

    Jahn–Teller Ordering Dynamics in the Paraelectric BiMn7O12 Phase: 57Fe Probe Mössbauer Diagnostics

    The electrical hyperfine interactions of the 57Fe probe nuclei stabilized in the structure of the BiMn7O12 manganite are studied by Mössbauer spectroscopy. Mössbauer spectra are measured in the para-electric temp...

    A. V. Sobolev, V. I. Nitsenko, A. A. Belik… in Journal of Experimental and Theoretical Ph… (2023)

  3. No Access

    Article

    Synthesis and 57Fe Mössbauer Studies of Polycrystalline Magnesium Ferrites MgFe2O4 and Mg(Fe0.8Ga0.2)2O4

    The main goal of this study is the preparation of single-phase MgFe2O4 and Mg(Fe0.8Ga0.2)2O4 powders using a gel auto-combustion method. X-ray powder diffraction (PXRD), micro-X-ray fluorescence spectrometry (μ-X...

    I. S. Glazkova, M. N. Smirnova, O. N. Kondrat’eva… in Russian Journal of Inorganic Chemistry (2023)

  4. No Access

    Article

    Local Structure and Magnetic Hyperfine Interactions of 57Fe Probe Nuclei in TlCr0.9557Fe0.05O3

    Mössbauer measurements have been performed on nuclei of 57Fe probe atoms in the perovskite-structure of the TlCr0.9557Fe0.05O3 chromite synthesized at high pressure. Reasons for the observed differences between t...

    A. V. Sobolev, Wei Yi, A. A. Belik… in Journal of Experimental and Theoretical Ph… (2021)

  5. No Access

    Article

    57Fe Probe Mössbauer Study of Magnetic Phase Transitions in MnP Phosphide

    57Fe Mössbauer studies of Mn0.99557Fe0.005P monophosphide have been performed in a wide temperature range including magnetic transitions at the points TC = 292 K and TN = 60 K, the former of which (at TC) is a tr...

    A. A. Aslandukova, A. V. Sobolev… in Journal of Experimental and Theoretical Ph… (2020)

  6. No Access

    Article

    Probe Mössbauer Diagnostics of Charge Ordering in Manganites CaCuxMn7–xO12 (0 ≤ x ≤ 1)

    We present the results of our 57Fe probe Mössbauer study in manganites CaCuxMn6.96–x57Fe0.04O12 (0 ≤ x ≤ 1). We have established that for compositions 0 ≤ x ≤ 0.15 near the structural R\(\bar {3}\) ↔ Im$$\bar {3}...

    I. S. Glazkova, V. S. Rusakov, A. V. Sobolev… in Journal of Experimental and Theoretical Ph… (2019)

  7. No Access

    Article

    Electric Hyperfine Interactions of 57Fe Impurity Atoms in ACrO3 Perovskite-Type Chromites (A = Sc, In, Tl, Bi)

    Perovskite-type chromites ACr0.9557Fe0.05O3 (A = Sc, In, Tl, Bi) have been studied by probe Mössbauer spectroscopy on 57Fe nuclei. The spectra of the ACr0.9557Fe0.05O3 samples (A = Sc, In, Bi) measured above the ...

    A. V. Sobolev, A. V. Bokov, W. Yi… in Journal of Experimental and Theoretical Ph… (2019)

  8. No Access

    Article

    Simulation of radioactive decay by barium substitution for cesium in sodium aluminum-iron phosphate glass

    Simulation of 137Cs radioactive decay to 137Ba by an equiatomic substitution of Cs with Ba in a 30 Na2O, 10 Cs2O, 10 Al2O3, 10 Fe2O3, 40 P2O5 (mol%) glass was studied by X-ray diffraction, scanning electron micro...

    S. V. Stefanovsky, O. I. Stefanovsky… in Journal of Radioanalytical and Nuclear Che… (2019)

  9. No Access

    Article

    Probe Mössbauer Spectroscopy of BiNi0.9657Fe0.04O3

    This paper presents results of a 57Fe probe Mössbauer spectroscopy study of the BiNi0.9657Fe0.04O3 nickelate. The spectra measured above its TN demonstrate that Fe3+ cations heterovalently substitute for Ni2+ nic...

    Yu. O. Lekina, I. S. Glazkova, A. A. Belik, I. A. Presniakov… in Inorganic Materials (2018)

  10. No Access

    Article

    Hyperfine Interactions of 57Fe Nuclei in ScCo1–xFe x O3 (x = 0.05, 0.4) Substituted Cobaltites

    The Mössbauer study of 57Fe nuclei in Sc1–yCo1–xFe x O3–3/2y (x = 0.05, 0.4; y = 0.1, 0.2) cobaltites has been reported. Mössbauer spectra, as well as calculations of the paramet...

    I. S. Glazkova, A. V. Sobolev, W. Yi… in Journal of Experimental and Theoretical Ph… (2018)

  11. No Access

    Article

    Preparation and Characterization of Borosilicate Glass Waste Form for Immobilization of HLW from WWER Spent Nuclear Fuel Reprocessing

    Borosilicate glassy materials for immobilization of HLW from Russian WWER (PWR) spent nuclear fuel reprocessing were designed, synthesized in a resistive furnace, and characterized by XRD, SEM/EDS, and FTIR sp...

    S. V. Stefanovsky, M. V. Skvortsov, O. I. Stefanovsky, B. S. Nikonov… in MRS Advances (2017)