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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:

  • Lattice dynamics of a monoclinic CsH₂PO₄ crystal 
    Shchur, Ya.I.; Levitskii, R.R.; Vlokh, O.G.; Kityk, A.V.; Vysochansky, Y.M.; Grabar, A.A. (Condensed Matter Physics, 1999)
    The phonon dispersion relations in a CsH₂PO₄ crystal in a paraelectric phase by means of a rigid molecular-ion model are calculated. The phonon spectra in the quasi-harmonic approximation at various values of temperature ...
  • List of INTAS Projects presented at the Workshop 
    Автор відсутній (Condensed Matter Physics, 1999)
  • List of participants of the INTAS-Ukraine Workshop on Condensed Matter Physics 
    Автор відсутній (Condensed Matter Physics, 1999)
  • Local anharmonic effects in high-Tc superconductors. Pseudospin-electron model 
    Stasyuk, I.V. (Condensed Matter Physics, 1999)
    Some aspects of physical phenomena in high-Tc crystals caused by anharmonicity of the crystal lattice are discussed. Appropriate theoretical models are considered. A review is given of the results obtained while ...
  • Magnetodeformation effects in a crystal lattice 
    Lukiyanets, B.A.; Peleshchak, R.M. (Condensed Matter Physics, 1999)
    A crystal with a local plane defect in the external magnetic field B oriented along the plane is investigated. Within the framework of the variational method a qualitative analysis of the degree of deformation depending ...
  • Manifestations of the electron orbital moment in high-frequency properties of ferroelectrics with 3d-ions 
    Chupis, I.E. (Condensed Matter Physics, 1999)
    A phenomenological theory of high-frequency properties of ferroelectric and ferroelectric-ferromagnet with the 3d-ions has been elaborated based on the separate accounting for spin and orbital electron moments, electron and ...
  • Master equation approach to protein folding 
    Cieplak, M.; Henkel, M.; Banavar, J.R. (Condensed Matter Physics, 1999)
    The dynamics of two 12-monomer heteropolymers on the square lattice is studied exactly within the master equation approach. The time evolution of the occupancy of the native state is determined. At low temperatures, the ...
  • Model description of the H–bonded transuranium complexes 
    Stasyuk, I.V.; Ivankiv, O.L.; Velychko, O.V.; Holubets, T.V. (Condensed Matter Physics, 1999)
    In the framework of configurational model it is established that regions of existence of various forms of actinide hydroxocomplexes at variation of solution pH depend on differences of configuration energies and ...
  • Modulated structures in the ANNNI model with an external magnetic field near criticality 
    Gonchar, N.S.; Hajduk, H.G. (Condensed Matter Physics, 1999)
    Conditions for a phase transition from the paramagnetic state to the modulated structure are found in a class of anisotropic Ising models with an external magnetic field. The critical ...
  • 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 ...

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