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Перегляд Condensed Matter Physics, 1998, № 1 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Condensed Matter Physics, 1998, № 1 за датою випуску

Сортувати за: Порядок: Результатів:

  • Bystrenko, O.; Zagorodny, A. (Condensed Matter Physics, 1998)
    Nonlinear effects in screening a high-Z grain immersed in a plasma background were investigated by means of microscopic Monte-Carlo simulations and within the Poisson-Boltzmann theory. A distinct difference from the ...
  • Omelyan, I.P.; Mryglod, I.M.; Tokarchuk, M.V. (Condensed Matter Physics, 1998)
    The concept of generalized collective modes, recently proposed for the investigation of simple fluids, is now applied to describe processes of dielectric relaxation in dipolar systems. The approach presented here is ...
  • Rudavsky, Yu.; Ponedilok, G.; Dorosh, L. (Condensed Matter Physics, 1998)
    Long-wave spin excitations in the perfect s-d model are studied. The Hamiltonian of the model includes, apart from usually treated spin-electron processes, the Heisenberg exchange interaction of atomic spins and the ...
  • Robaszkiewicz, S.; Micnas, R. (Condensed Matter Physics, 1998)
    We discuss approaches based on the concepts of local electron pairing and the superconducting properties which they imply. The nature of the intermediate coupling regime is addressed and a recent progress in the BCS–Bose ...
  • Loktev, V.M.; Turkowski, V.M. (Condensed Matter Physics, 1998)
    An attempt to describe the bell-shape dependence of the critical temperature of high-T<sub>c</sub> superconductors on the charge carrier density is made. It is proposed to explain its linear increase in the region of ...
  • Didukh, L. (Condensed Matter Physics, 1998)
    A model for the description of materials with narrow energy bands is proposed. It is shown that in narrow-band materials an electron-hole symmetry is absent in contrast to the Hubbard model. In this paper a metal-insul ...
  • Plakida, N.M. (Condensed Matter Physics, 1998)
    The theory of the superconductivity mediated by kinematic and exchange interactions in t−J and two-band Hubbard models in a paramagnetic state is formulated. The Dyson equations for the matrix Green functions in terms of ...
  • Schürrer, I.; Schachinger, E. (Condensed Matter Physics, 1998)
    This paper discusses a phenomenological model used to describe various properties of a dx²−y² superconductor in its temperature as well as frequency dependence, namely, the London penetration depth, the optical conductivity, ...
  • Mancini, F.; Avella, A. (Condensed Matter Physics, 1998)
    Strongly correlated electron systems require the development of new theoretical schemes in order to describe their unusual and unexpected properties. The usual perturbation schemes are inadequate and new concepts ...
  • Moskalenko, V.A.; Kon, L.Z. (Condensed Matter Physics, 1998)
    A new diagram technique based on the generalized Wick theorem has been elaborated for the systems with strong electronic correlations. Coulomb repulsion of the electrons of the Hubbard model is considered as the main ...
  • Izyumov, Yu.A.; Chashchin, N.I. (Condensed Matter Physics, 1998)
    For a tJ -model in the X -operators representation a generating functional of the field describing fluctuations of matrix elements of electron hopping on a lattice is presented. The first order functional derivative with ...
  • Vakarchuk, I.O.; Babin, V.V. (Condensed Matter Physics, 1998)
    The system of bose liquid + impurity is considered. The energy spectrum, as well as effective mass of impurity is calculated. For the case of an ³He atom in superfluid <⁴He numerical calculations are performed.
  • Автор відсутній (Condensed Matter Physics, 1998)

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