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Перегляд Condensed Matter Physics, 1999, том 2 за назвою

Репозиторій DSpace/Manakin

Перегляд Condensed Matter Physics, 1999, том 2 за назвою

Сортувати за: Порядок: Результатів:

  • Molecular dynamics study of ternary system K + K⁺q + O⁻²q 
    Shimkevich, A.L.; Shimkevich, I.Yu.; Kuzin, V.V. (Condensed Matter Physics, 1999)
    Results of molecular dynamics (MD) simulation of potassium/oxygen melt, K + K⁺q + O⁻²q , at the temperature of 550 K are presented. MD simulation has been performed for oxygen charge −2q = −1, −2 in the frame of NVT ...
  • Multicritical behaviour in magnetic fluids 
    Schinagl, F.; Folk, R.; Iro, H. (Condensed Matter Physics, 1999)
    The phases of a magnetic fluid in an external field are considered. As model systems we take an ideal (hard core) gas with Ising interaction and a van der Waals gas with additional Heisenberg interaction. In mean ...
  • Multifractal dimension spectra in polymer physics 
    von Ferber, Ch.; Holovatch, Yu. (Condensed Matter Physics, 1999)
    We study the multifractal properties of diffusion in the presence of an absorbing polymer and report the numerical values of the multifractal dimension spectra for the case of an absorbing self avoiding walk or random walk.
  • Nematic-isotropic transition in a weakly diluted lattice model: Monte Carlo study 
    Ilnytskyi, Ja.M. (Condensed Matter Physics, 1999)
    We consider a weakly diluted lattice model of elongated particles undergoing a first order nematic-isotropic transition in a pure bulk case. The lattice of 20³ sites with a 5% dilution is studied by Monte Carlo simulation ...
  • New type phase transitions in the Mitsui model with bimodal random field 
    Stasyuk, I.V.; Velychko, O.V. (Condensed Matter Physics, 1999)
    Thermodynamic functions of the Mitsui model with bimodal random field are calculated in the mean field approximation for long–range interactions with an exact treatment of the intracell interaction of pseudospins ...
  • On the hydration of ions 
    Heinzinger, K.; Scha, H. (Condensed Matter Physics, 1999)
    This report will concentrate on ions which are produced in nuclear power reactors and/or which are of special interest because of their small radius and/or their high charges, leading to hydrolysis. Mainly the results ...
  • Optical and electric manifestations of incommensurate phase in NH₄HSeO₄ crystals 
    Andriyevsky, B.V.; Czapla, Z.; Dacko, S.; Myshchyshyn, O.Ya. (Condensed Matter Physics, 1999)
    Temperature dependences of the optical path difference by the variable part of refractive index D = (n − 1)l and the components ε′ and ε′′ of complex dielectric permittivity for NH₄HSeO₄ single crystal are studied in ...
  • Optical conductivity in superconductors with mixed symmetry order parameters 
    Schürrer, I.; Schachinger, E. (Condensed Matter Physics, 1999)
    The real and imaginary part of the optical conductivity and the derived optical scattering rate of superconductors with mixed s + d or s + id symmetry order parameter is calculated for different mixing and for moderate impurity ...
  • Peculiarities of refractive index dispersion of TGS crystals 
    Myshchyshyn, O.Ya.; Andriyevsky, B.V.; Romanyuk, M.O.; Kurlyak, V.Yu. (Condensed Matter Physics, 1999)
    Based on solving the Kramers-Kronig integral equation, binding the spectrum of refractive index n(ω) of dielectric experimentally measured in the range of transparency (ω) and its spectrum of absorption index k(ω′) in ...
  • Phase transitions in pseudospin- electron model with direct interaction between pseudospins 
    Stasyuk, I.V.; Havrylyuk, Yu. (Condensed Matter Physics, 1999)
    The analysis of thermodynamic properties of the pseudospin-electron model in the case of zero electron transfer with the inclusion of the direct pseudospin-pseudospin interaction of ferroelectric type is performed. The ...
  • Phase transitions in Sn₂P₂S₆ ferroelectric under high pressures 
    Slivka, A.G.; Gerzanich, E.I.; Guranich, P.P.; Shusta, V.S.; Kedyulich, V.M. (Condensed Matter Physics, 1999)
    We have made dilatometric studies of phase transitions in Sn₂P₂S₆ ferroelectric under high hydrostatic pressures. We investigated the pressure dependence of the coefficients in an expansion of the thermodynamic potential ...
  • Physical processes in the fuel containing masses interacting with aqueous solutions in the “Shelter” object. Inhomogeneous diffusion of ions UO²⁺₂ , Cs⁺ in the system “glassy nuclear magma – water” 
    Yukhnovskii, I.R.; Tokarchuk, M.V.; Zhelem, R.I. (Condensed Matter Physics, 1999)
    The influence of water on the glassy nuclear magma of the Chornobyl reactor is discussed. To describe it the simplest model for the “glassy nuclear magma–water” system is formulated. Inhomogeneous position- dependent diffusion ...
  • Piezoelectric properties of Bi₂TeO₅ single crystals 
    Antonenko, A.M.; Domoratsky, K.V.; Kudzin, A.Yu.; Sadovskaya, L.Ya. (Condensed Matter Physics, 1999)
    This paper is devoted to the measurement results of piezoelectric, dielectric and elastic tensor components in the temperature range between 20 °C and 400 °C. It was revealed that excitation resonance and antiresonance ...
  • Pressure effect upon the dielectric response of KDP family crystals 
    Stasyuk, I.V.; Levitskii, R.R.; Moina, A.P. (Condensed Matter Physics, 1999)
    Within the four-particle cluster approximation for the proton ordering model, we study the effects of external pressures (which do not lower the crystals' symmetry) upon static and dynamic dielectric properties of ...
  • Raman scattering in crystals with order-disorder type phase transition 
    Ivankiv, Ya. (Condensed Matter Physics, 1999)
    The theory based on the “operator” two-time Green functions formalism applied for the construction of the polarizability operators entering the general expression for the effective cross-section of Raman scattering is ...
  • Relaxation dynamics of disordered Ising-like models 
    Levitskii, R.R.; Sokolovskii, R.O. (Condensed Matter Physics, 1999)
    Two-site cluster approximation to Glauber's master equation is developed for lattice spin systems with substitutional chaos. Dynamic pair correlation functions of disordered Ising and Mitsui models are calculated. The ...
  • Soliton and ratchet motions in helices 
    Zolotaryuk, A.V.; Christiansen, P.L.; Norde, B.; Savin, A.V. (Condensed Matter Physics, 1999)
    The most simple and straightforward generalization of the standard one-dimensional molecular chain with nearest-neighbour interactions to three dimensions is shown to be a helix backbone with three types of intermolecular ...
  • Spectra of transverse excitations in liquid glass-forming metallic alloy Mg₇₀Zn₃₀: temperature dependence 
    Bryk, T.; Mryglod, I. (Condensed Matter Physics, 1999)
    The temperature dependence of the dispersion and damping coefficients of transverse excitations in metallic alloy Mg₇₀Zn₃₀ at the number density n= 0.0435 A⁻³ is studied using the method of generalized collective modes. ...
  • Spin-1/2 XX chains in a transverse field with regular nonuniformity or correlated Lorentzian disorder 
    Derzhko, O.; Krokhmalskii, T.; Zaburannyi, O. (Condensed Matter Physics, 1999)
    Using continued fractions we examined the density of states and thermodynamic properties of a few periodic nonuniform spin-1/2 XX chains in a transverse field. We considered the transverse spin dynamics in spin-1/2 XX ...
  • Spontaneous polarization in the cluster ferroelectric system close to the phase transition point 
    Korynevskii, N.A. (Condensed Matter Physics, 1999)
    A two-stage layer by layer integration of the ferroelectric two-particle cluster system partition function functional is made in the quartic basic distribution of the dipole momentum fluctuation approximation. The shape ...

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