Перегляд за автором "Strzhemechny, M.A."

Сортувати за: Порядок: Результатів:

  • 9th International Conference on Cryocrystals and Quantum Crystals 
    Strzhemechny, M.A.; Yakub, E.S. (Физика низких температур, 2013)
  • Dynamics of He atoms adsorbed on a carbon nanotube 
    Strzhemechny, M.A.; Legchenkova, I.V. (Физика низких температур, 2011)
    The spectrum of a helium atom adsorbed on an armchair single-walled carbon nanotube is calculated. It is shown that a helium adatom tunnels over the surface of the nanotube within a band 10 K (for ⁴He) to 14 K (for ³He) ...
  • Hysteretic phenomena in Xe-doped C₆₀ from x-ray diffraction 
    Prokhvatilov, A.I.; Galtsov, N.N.; Legchenkova, I.V.; Strzhemechny, M.A.; Cassidy, D.; Gadd, G.E.; Moricca, S.; Sundqvist, B.; Aksenova, N.A. (Физика низких температур, 2005)
    Polycrystalline fullerite С₆₀ intercalated with Xe atoms at 575 K and a pressure of 200 MPa was studied by powder x-ray diffraction. The integrated intensities of a few brighter reflections have been utilized to evaluate ...
  • Interlayer Mn–Mn exchange parameter MnPS₃ from x-ray diffraction data 
    Yagotintsev, K.A.; Strzhemechny, M.A.; Prokhvatilov, A.I.; Stetsenko, Yu.E.; Vysochanski, Yu.M. (Физика низких температур, 2012)
    The interlayer distance in MnPS₃ was measured by x-ray diffraction as a function of the temperature in the vicinity of the Néel point of 78 K. A well detectable magnetic striction of about 0.0185% has been documented. Using ...
  • Low-temperature thermodynamics of Xe-doped fullerite C₆₀ 
    Klochko, M.S.; Strzhemechny, M.A. (Физика низких температур, 2015)
    Using a model of the fullerene C₆₀ molecule with carbon atoms uniformly distributed over its surface, the potential energy U(n) of a Xe atom in an octahedral void of C₆₀ is calculated. Within the framework of threedimen ...
  • Novel carbon materials: new tunneling systems (Review Article) 
    Strzhemechny, M.A.; Dolbin, A.V. (Физика низких температур, 2013)
    This review covers recent achievements in the studies of quantum properties of the novel carbon materials (fullerite C₆₀ and bundles of single-walled nanotubes (SWNT)) saturated with such light-mass species as helium ...
  • Novel mechanism of the negative thermal expansion of doped fullerite C₆₀ 
    Strzhemechny, M.A.; Legchenkova, I.V. (Физика низких температур, 2010)
    A model for an atomic impurity in an octahedral void of fullerite C₆₀ is suggested. The problem is solved in the spherical oscillator approximation, which is appropriate for the larger rare gas atoms. It is shown that such ...
  • Orientational glassification in fullerite C₆₀ saturated with H₂: photoluminescence studies 
    Zinoviev, P.V.; Zoryansky, V.N.; Silaeva, N.B.; Stetsenko, Yu.E.; Strzhemechny, M.A.; Yagotintsev, K.A. (Физика низких температур, 2012)
    Using one-photon excitation we studied photoluminescence of C₆₀ saturated with molecular hydrogen over a temperature range 10 to 230 K. Saturation of samples was done at a pressure of 30 atm and at temperatures low enough ...
  • Orientational order parameter in CO₂-based alloys with rare gases from THEED data: pure CO₂ 
    Danchuk, V.V.; Solodovnik, A.A.; Strzhemechny, M.A. (Физика низких температур, 2007)
    Using the transmission high-energy electron diffraction technique, we studied the temperature dependence of the diffraction reflection intensities from the solid phase of CO₂. To deduce absolute values of the orientational ...
  • Orientational order parameter in α-N₂ from x-ray data 
    Galtsov, N.N.; Klenova, O.A.; Strzhemechny, M.A. (Физика низких температур, 2002)
    A method is suggested and validated for the deduction of orientational order parameter values h in molecular crystals consisting of diatomics directly from integrated x-ray diffraction intensities. This method is applied ...
  • Ortho–para conversion in the solid hydrogens at high pressures 
    Strzhemechny, M.A.; Hemley, R.J. (Физика низких температур, 2003)
    At low pressures the ortho–para conversion in H₂ and D₂ is a slow process governed by the magnetic dipole interaction of nuclear magnetic moments, phonons being the main energy sink. As the pressure is raised to a few GPa ...
  • Phosphorescence of vitreous 2-bromobenzophenone 
    Buravtseva, L.M.; Pyshkin, O.S.; Strzhemechny, M.A.; Avdeenko, A.A. (Физика низких температур, 2008)
    Spectroscopic studies of vitreous 2-bromobenzophenone have been carried out over the respective domain of its stability. Glassy 2-bromobenzophenone samples were obtained by abrupt cooling of the melt by cold helium vapor. ...
  • Photoluminescence of ortho-bromobenzophenone 
    Avdeenko, A.A.; Pyshkin, O.S.; Eremenko, V.V.; Strzhemechny, M.A.; Buravtseva, L.M.; Romashkin, R.V. (Физика низких температур, 2006)
    Phosphorescence spectra of crystalline ortho-bromobenzophenone (2-bromobenzophenone, 2BrBP) were measured from 1.6 K to room temperature. A cardinal emission mechanism crossover occurs within this temperature range. At ...
  • Preface 
    Strzhemechny, M.A. (Физика низких температур, 2015)
  • Process of intercalation of C₆₀ with molecular hydrogen from XRD data 
    Yagotintsev, K.A.; Stetsenko, Yu.E.; Legchenkova, I.V.; Prokhvatilov, A.I.; Strzhemechny, M.A.; Schafler, E.; Zehetbauer, M. (Физика низких температур, 2009)
    The process of normal hydrogen infusion into a C₆₀ powder at 1 bar and room temperature was monitored using x-ray diffraction. The effect of the intercalation on the lattice proved to be rather weak: the volume expansion ...
  • Properties of solid hydrogen doped by heavy atomic and molecular impurities 
    Galtsov, N.N.; Prokhvatilov, A.I.; Shcherbakov, G.N.; Strzhemechny, M.A. (Физика низких температур, 2003)
    Using powder x-ray diffraction we studied the structural characteristics of normal and para hydrogen crystals doped with Ar, Kr, N₂, and O₂ impurities over the range from 5 K to the melting point of the hydrogen matrix. ...
  • Quench deposited Kr-H₂ and Ar-H₂ mixtures: in quest of impurity-hydrogen gels 
    Strzhemechny, M.A.; Galtsov, N.N.; Prokhvatilov, A.I. (Физика низких температур, 2003)
    The structure and morphology of low-temperature quench condensed binary alloys of hydrogen with argon and krypton were studied by the powder x-ray diffraction. The nominal hydrogen fraction c in both systems was varied ...
  • Solid HD: anisotropic potentials and structure 
    Strzhemechny, M.A. (Физика низких температур, 1996)
  • Structure and microhardness of low pressure polymerized fullerite C₆₀ 
    Isakina, A.P.; Lubenets, S.V.; Natsik, V.D.; Prokhvatilov, A.I.; Strzhemechny, M.A.; Fomenko, L.S.; Aksenova, N.A.; Soldatov, A.V. (Физика низких температур, 1998)
    We have carried out low-temperature x-ray diffraction studies on C₆₀ fullerite polymerized by low quasi-hydrostatic pressure of 1.1 GPa at T = 563 K. It is established that at room temperature in freshly prepared samples ...
  • Structure and photoluminescence of helium-intercalated fullerite C₆₀ 
    Legchenkova, I.V.; Prokhvatilov, A.I.; Stetsenko, Yu.E.; Strzhemechny, M.A.; Yagotintsev, K.A.; Avdeenko, A.A.; Eremenko, V.V.; Zinoviev, P.V.; Zoryansky, V.N.; Silaeva, N.B.; Ruoff, R.S. (Физика низких температур, 2002)
    Intercalation of C₆₀ single crystals with helium was studied by powder x-ray diffractometry. It was established that the intercalation is a two-stage process, octahedral cavities are filled first and then tetrahedral ones, ...