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  1. No Access

    Article

    Influence of Ion Irradiation on the Structural Parameters of the Superconducting Layer of HTS Composites

    The effect of irradiation with Cu+ ions with an energy of E = 6.3 eV on the crystal structure and critical characteristics of high-temperature copper-based superconductors in the regime of radiation defect format...

    D. A. Abin, I. A. Rudnev, A. S. Starikovskii, S. V. Pokrovskii… in Physics of Atomic Nuclei (2023)

  2. No Access

    Article

    Wide-Band EPR Spectroscopy of SrY2O4:Ho3+ Crystal

    EPR spectra of impurity Ho3+ ions in oriented SrY2O4 single-crystals are registered at the temperature 4.2 K in the frequency range from 70 to 180 GHz. The results of measurements evidence for the substitution of...

    G. S. Shakurov, B. Z. Malkin, R. G. Batulin, A. G. Kiiamov in Optics and Spectroscopy (2023)

  3. No Access

    Article

    Magnetic Properties of Terbium–Lithium Tetrafluoride Crystalline Nano- and Micropowders

    Terbium tetrafluoride micro- and nanopowders are synthesized. A drop in the Curie temperature of a nanosized sample is observed. The Curie temperature is TC = 2.88(4) K for a microsized sample and TC = 2.78(4) K ...

    G. Iu. Andreev, I. V. Romanova… in Bulletin of the Russian Academy of Science… (2023)

  4. Article

    Open Access

    Classical Density Functional Theory Approach to the Vibrational Properties and Lattice Specific Heat of a Quasi-One-Dimensional Antiferromagnet KFeSe2

    We have performed ab initio calculations of vibrational properties of KFeSe2 compound utilizing density functional theory. Total and element specific phonon densities of states have been calculated within a direc...

    M. D. Kuznetsov, A. G. Kiiamov, D. A. Tayurskii in JETP Letters (2022)

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  5. No Access

    Article

    On the Ab Initio DFT + U Calculations of the Physical Properties of a Compound with Strong Electron–Electron Correlations by the Case of KFeS2

    The magnetic and electronic properties of quasi-one-dimensional iron chalcogenide compound KFeS2 have been calculated within two DFT + U approaches based on the simplified LSDA + U approach and rotationally invar...

    A. G. Kiiamov, M. D. Kuznetsov, R. G. Batulin, D. A. Tayurskii in JETP Letters (2022)

  6. No Access

    Article

    Impact of Impurity Phases and Superstoichiometric Iron on the Critical Temperature of Iron Chalcogenides

    The results of transport and magnetic measurements of iron chalcogenide crystals are analyzed taking into account the data of the chemical composition and impurity phases obtained by means of X-ray diffractome...

    I. I. Gimazov, A. G. Kiiamov, N. M. Lyadov, A. N. Vasiliev, D. A. Chareev… in JETP Letters (2021)

  7. No Access

    Article

    Femtosecond Optical and Magneto-Optical Spectroscopy Study of Magnetic and Electronic Inhomogeneities in a Pd0.94Fe0.06 Thin Film

    The results of a femtosecond optical and magneto-optical spectroscopy study of a thin epitaxial film of a low-temperature magnetically soft Pd0.94Fe0.06 alloy on a ({dy001})-MgO substrate are reported. The photoi...

    A. V. Petrov, R. V. Yusupov, S. I. Nikitin, A. I. Gumarov, I. V. Yanilkin… in JETP Letters (2019)

  8. No Access

    Article

    Investigation of the Magnetic Properties of Ludwigites

    Single crystals of Cu2AlBO5 and Cu2GaBO5 copper oxyborates are synthesized via solution-melt crystallization and subjected to X-ray diffraction analysis. Parameters of the crystal lattice and the positions of ato...

    R. M. Eremina, E. M. Moshkina… in Bulletin of the Russian Academy of Science… (2019)

  9. No Access

    Article

    The Spectral and Magnetic Properties of Er3+ and Yb3+ Ions in Y2Ti2O7 Crystals with a Pyrochlore Structure

    Cubic Y2Ti2O7 single crystals doped with Er3+ or Yb3+ ions have been studied by the methods of electron spin resonance (ESR) and selective laser spectroscopy. ESR spectra exhibit signals from rare-earth ions that...

    R. G. Batulin, M. A. Cherosov, I. F. Gil’mutdinov… in Physics of the Solid State (2019)

  10. 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)

  11. No Access

    Article

    Synthesis and Studies of Palladium-Iron Alloy Thin Film with L10 Ordered Structure

    The paper deals with the synthesis of palladium-iron alloy thin film with the ordered L10 structure and presents results of its studies. The evolution of the thin film crystallinity is described at different stag...

    M. V. Pasynkov, R. V. Yusupov, I. V. Yanilkin, I. R. Vakhitov… in Russian Physics Journal (2018)

  12. No Access

    Article

    Observation of Persistent Currents in Finely Dispersed Pyrolytic Graphite

    The trapped magnetic flux in the finely ground pyrolytic graphite sample annealed at 670 K in air has been observed. Flux trap** occurs on cooling of the sample from room temperature to 10 K in a magnetic fi...

    M. Saad, I. F. Gilmutdinov, A. G. Kiiamov, D. A. Tayurskii, S. I. Nikitin… in JETP Letters (2018)

  13. No Access

    Article

    Coherent X-ray diffraction imaging of nanoengineered polymeric capsules

    For the first time, nanoengineered polymeric capsules and their architecture have been studied with coherent X-ray diffraction imaging technique. The use of coherent X-ray diffraction imaging technique allowed...

    S. Erokhina, L. Pastorino, D. Di Lisa, A. G. Kiiamov, A. R. Faizullina… in JETP Letters (2017)

  14. 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)

  15. No Access

    Article

    Analysis of Electronic and Structural Properties of Surfaces and Interfaces Based on LaAlO \( _{3} \) and SrTiO \( _{3}\)

    Recently, it was established that a two-dimensional electron system can arise at the interface between two oxide insulators LaAlO $$_{3...

    I. I. Piyanzina, Yu. V. Lysogorskiy, I. I. Varlamova… in Journal of Low Temperature Physics (2016)

  16. No Access

    Article

    Magnetic properties of (SrFe12O19) x (CaCu3Ti4O12)1–x composites

    New composite materials (SrFe12O19) x (CaCu3Ti4O12)1–x (x = 0, 0.05, 1) have been synthesized. Their magnetic properties are studied in the tempe...

    R. M. Eremina, K. R. Sharipov, I. V. Yatsyk… in Journal of Experimental and Theoretical Ph… (2016)