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  1. No Access

    Article

    Crystal Chemistry of Minerals with Spinel Modules and New Data on the Symmetry, Structure, and Cation Distribution Features in Tashelgite, CaMgFe2+Al9O16(OH)

    Rerefinement of the crystal structure of the mineral tashelgite with the idealized formula CaMgFe2+Al9O16(OH) (orthorhombic Pbam space group; a = 17.1823(1), b = 23.5718(4), c = 5.6973(5) Å) is performed using th...

    E. S. Zarubina, R. K. Rastsvetaeva, V. S. Rusakov… in Journal of Structural Chemistry (2024)

  2. No Access

    Article

    Magnetic Properties of La0.81Sr0.19Mn0.9Fe0.1−xZnxO3 (x = 0, x = 0.05)

    Magnetic properties of polycrystalline La0.81Sr0.19Mn0.9Fe0.1−xZnxO3 (x = 0, 0.05) have been investigated by means of electron spin resonance, magnetic susceptibility, and Mössbauer measurements. Both samples sho...

    R. M. Eremina, I. V. Yatsyk, Z. Y. Seidov, F. G. Vagizov… in Applied Magnetic Resonance (2023)

  3. No Access

    Article

    The Role of Manganese-substituting Ions and Oxygen Nonstoichiometry in the Formation of the Manganites Properties

    Structural and magnetic characteristics of La0.7Sr0.3Mn0.9Fe0.05Zn0.05O3 + γ and La0.7Sr0.3Mn0.9Fe0.05Mg0.05O3 + γ manganites, in which the iron is Mössbauer isotope 57Fe, are investigated and compared. Ceramic s...

    V. K. Karpasyuk, A. G. Badelin, D. I. Merkulov… in Inorganic Materials: Applied Research (2022)

  4. No Access

    Article

    Methods of Coherent Control of Spectral and Temporal Properties of Gamma Photons and Their Potential Applications

    Promising methods for controlling the spectral and temporal properties of gamma photons, which are important for develo** quantum informatics and improving the accuracy of Mössbauer spectroscopy measurements...

    R. N. Shakhmuratov, F. G. Vagizov, V. Ya. Gaiduk in Crystallography Reports (2020)

  5. No Access

    Article

    Mössbauer Method for Studying Vibrations in a Granular Medium Excited by Ultrasound

    Vibrations of a granular medium immersed in epoxy resin without a hardener have been studied by Mössbauer spectroscopy. The granular medium consists of small potassium ferrocyanide particles enriched in the 57Fe ...

    R. N. Shakhmuratov, F. G. Vagizov in JETP Letters (2020)

  6. No Access

    Article

    DFT and Mössbauer Spectroscopy Study of a FeTe0.5Se0.5 Single Crystal

    The iron based superconductor FeSe0.5Te0.5 has been studied applying Mössbauer spectroscopy and ab initio density functional theory calculations of hyperfine parameters of iron nuclei. It has been shown that the ...

    A. G. Kiiamov, D. A. Tayurskii, F. G. Vagizov, D. Croitori, V. Tsurkan… in JETP Letters (2019)

  7. No Access

    Article

    Mössbauer Method for Measuring Subangstrom Displacements of Thin Films

    The first results of Mössbauer spectroscopy measurements of the distribution of the amplitude of mechanical vibrations of a 25-μm-thick stainless steel foil along its surface are presented. The gamma radiation...

    R. N. Shakhmuratov, F. G. Vagizov in JETP Letters (2018)

  8. No Access

    Article

    Thermal Expansion of FeBO3 and Fe3BO6 Antiferromagnets Near the Neel Temperature

    FeBO3 and Fe3BO6 are antiferromagnets with TN ≈ 348 K and 508 K respectively. This work presents the results of the study of the thermal expansion and phase transitions occurring in these borates by hightemperatu...

    Y. P. Biryukov, S. K. Filatov, F. G. Vagizov… in Journal of Structural Chemistry (2018)

  9. No Access

    Article

    Inhomogeneous Magnetic State of Се2Fe17 Evidenced by Mössbauer Spectroscopy

    A comparative analysis of the magnetic properties and Mössbauer spectra of two Ce2Fe17 samples prepared by different methods and demonstrating different magnetic behavior is carried out. A model for processing th...

    S. P. Naumov, V. V. Serikov, N. M. Kleinerman, A. G. Kuchin… in Physics of the Solid State (2018)

  10. No Access

    Article

    Mössbauer spectroscopy under acoustical excitation: thick target effects

    A new model of Mössbauer absorption (transmission) spectra with an adequate analysis of the possible effects of acoustic excitation in the thick targets is proposed. In particular, the dependence of the line w...

    E. K. Sadykov, A. A. Yurichuk, F. G. Vagizov, Sh. I. Mubarakshin… in Hyperfine Interactions (2017)

  11. No Access

    Article

    New applications of the Mössbauer effect

    Results from a Mössbauer experiment to observe acoustic oscillations induced by pulsed laser excitation in MgO:57Fe2+ crystal are presented. Time-domain spectra are satsifacorily described by the theory of the fr...

    F. G. Vagizov, R. N. Shakhmuratov… in Bulletin of the Russian Academy of Science… (2017)

  12. No Access

    Article

    Mössbauer forward scattering in the regime of RF hyperfine field reversals (FeBO3): Temperature dependence of the spectra

    A model of frequency and time-domain Mössbauer forward scattering (FS) spectra on a magnetic target in the regime of RF hyperfine field reversals is proposed. The model allows us to describe the temperature de...

    E. K. Sadykov, V. V. Arinin, F. G. Vagizov in Bulletin of the Russian Academy of Science… (2017)

  13. No Access

    Article

    Magnetic properties of chain antiferromagnets RbFeSe2, TlFeSe2, and TlFeS2

    Single crystals of ternary ion chalcogenides RbFeSe2, TlFeSe2, and TlFeS2 are studied by X-ray diffraction, SQUID magnetometry, and Mössbauer spectroscopy. Common structural units of these chalcogenides are tetra...

    Z. Seidov, H. -A. Krug von Nidda, V. Tsurkan… in Bulletin of the Russian Academy of Science… (2017)

  14. No Access

    Article

    Mössbauer forward scattering: time-domain spectra

    The transmission of the Mössbauer radiation through an absorber being in the acoustic oscillation mode under forward scattering (FS) conditions has been analyzed. The modification of the existing models of the...

    E. K. Sadykov, A. A. Yurichuk, R. R. Gainov, F. G. Vagizov in Hyperfine Interactions (2016)

  15. No Access

    Article

    Coherent methods for controlling Mössbauer photons

    Two methods of forming short pulses from a single-phonon wave packet are compared. The first of these, known as gamma-echo method, is based on the rapid shift of a resonant absorber to the half-wavelength of t...

    F. G. Vagizov, R. N. Shakhmuratov… in Bulletin of the Russian Academy of Science… (2015)

  16. No Access

    Article

    Mössbauer forward scattering: The single-photon response of thick absorbers in an alternating field

    The propagation of Mössbauer radiation through an absorber being in the acoustic oscillation mode under forward scattering conditions has been analyzed. A generalization of the existing models of the formation...

    E. K. Sadykov, A. A. Yurichuk, F. G. Vagizov in JETP Letters (2015)

  17. No Access

    Article

    Oxidation and magnetic states of chalcopyrite CuFeS2: A first principles calculation

    The ground state band structure, magnetic moments, charges and population numbers of electronic shells of Cu and Fe atoms have been calculated for chalcopyrite CuFeS2 using density functional theory. The comparis...

    V. V. Klekovkina, R. R. Gainov, F. G. Vagizov, A. V. Dooglav… in Optics and Spectroscopy (2014)

  18. No Access

    Article

    Radiofrequency forward Mössbauer scattering method in study of magnetic materials

    Mössbauer spectra in forward scattering scheme were measured for iron borate (FeBO 3) exposed to radiofrequency (rf) field below the Neel temperature. The spectra have satellites spaced by doubled...

    E. K. Sadykov, G. I. Petrov, V. V. Arinin, F. G. Vagizov… in Hyperfine Interactions (2014)

  19. No Access

    Article

    Application of 57Fe Mössbauer spectroscopy as a tool for mining exploration of bornite (Cu5FeS4) copper ore

    Nuclear resonance methods, including Mössbauer spectroscopy,are considered as unique techniques suitable for remote on-line mineralogical analysis. The employment of these methods provides potentially signific...

    R. R. Gainov, F. G. Vagizov, V. A. Golovanevskiy… in Hyperfine Interactions (2014)

  20. No Access

    Article

    Formation of regular pulses with high peak intensity from a random flow of gamma quanta

    The propagation of a random flow of gamma quanta through a thick absorber containing resonant 57Fe nuclei is studied. Fast displacement of the absorber with respect to the gamma quantum source is found to produce...

    R. N. Shakhmuratov, F. G. Vagizov… in Bulletin of the Russian Academy of Science… (2014)

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