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Перегляд Condensed Matter Physics, 2009, том 12 за назвою

Репозиторій DSpace/Manakin

Перегляд Condensed Matter Physics, 2009, том 12 за назвою

Сортувати за: Порядок: Результатів:

  • Magnetic response of magnetic molecules with non-collinear local d-tensors 
    Schnack, J. (Condensed Matter Physics, 2009)
    Investigations of molecular magnets are driven both by prospective applications in future storage technology or quantum computing as well as by fundamental questions. Nowadays numerical simulation techniques and computer ...
  • Magnetocaloric effect in quantum spin-s chains 
    Honecker, A.; Wessel, S. (Condensed Matter Physics, 2009)
    We compute the entropy of antiferromagnetic quantum spin-s chains in an external magnetic field using exact diagonalization and Quantum Monte Carlo simulations. The magnetocaloric effect, i. e., temperature variations during ...
  • Mass-dependence of self-diffusion coefficients in disparate-mass binary fluid mixtures 
    Binas, I.; Mryglod, I. (Condensed Matter Physics, 2009)
    Self-diffusion coefficients of a binary uid mixture with components differing only in their particle masses are studied, in particular the case when mass ratio μ of light and heavy particles tends to zero. These ...
  • Measures on two-component configuration spaces 
    Finkelshtein, D.L. (Condensed Matter Physics, 2009)
    We study the measures on the configuration spaces of particles of two types. Gibbs measures on such spaces are described. Main properties of corresponding relative energy densities and correlation functions are considered. In ...
  • Method of intermediate problems in the Fröhlich polaron model 
    Soldatov, A.V. (Condensed Matter Physics, 2009)
    Method of intermediate problems in the theory of linear semi-bounded self-adjoint operators on rigged Hilbert space was applied to the investigation of the ground state energy of the Frohlich polaron model. It was shown that ...
  • Microscopic construction of the two-fluid model for superfluid helium-4 
    Shygorin, P.; Svidzynskyj, A. (Condensed Matter Physics, 2009)
    Using a system of Heisenberg's equation of motion for both the normal and the anomalous correlation functions a two-fluid hydrodynamics for superfluid helium-4 was constructed. The method is based on a gradient expansion ...
  • Mykola Bogolyubov and Lviv School of Statistical Physics 
    Yukhnovskii, I. (Condensed Matter Physics, 2009)
  • Nonequilibrium statistical operator in the generalized hydrodynamics of fluids 
    Markiv, B.B.; Omelyan, I.P.; Tokarchuk, M.V. (Condensed Matter Physics, 2009)
    The investigations of the classical interacting particles systems far from equilibrium using the Zubarev nonequilibrium statistical operator method are presented. The problem of the relaxation of a nonequilibrium state ...
  • Non-Gaussian behaviour of a self-propelled particle on a substrate 
    ten Hagen, B.; van Teeffelen, S.; Löwen, H. (Condensed Matter Physics, 2009)
    The overdamped Brownian motion of a self-propelled particle which is driven by a projected internal force is studied by solving the Langevin equation analytically. The active particle under study is restricted to ...
  • On equilibrium charge distribution above dielectric surface 
    Lytvynenko, D.M.; Slyusarenko, Yu.V. (Condensed Matter Physics, 2009)
    The problem of the equilibrium state of the charged many-particle system above dielectric surface is formulated. We consider the case of the presence of the external attractive pressing field and the case of its absence. ...
  • On the problem of low-temperature ordering in ferro-antiferroelectric mixed compounds 
    Korynevskii, N.A.; Solovyan, V.B. (Condensed Matter Physics, 2009)
    The problem of microscopic description of low-temperature phases in ferro-antiferroelectric mixed compounds is discussed. Those phases (ferro-, antiferroelectric and dipole glass) are interpreted based on the specific ...
  • Phase diagrams of the Bose-Hubbard model at finite temperature 
    Stasyuk, I.V.; Mysakovych, T.S. (Condensed Matter Physics, 2009)
    The phase transitions in the Bose-Hubbard model are investigated. A single-particle Green's function is calculated in the random phase approximation and the formalism of the Hubbard operators is used. The regions of existence ...
  • Phase separation in lithium intercalated anatase: A theory 
    Velychko, O.V.; Stasyuk, I.V. (Condensed Matter Physics, 2009)
    Lithium intercalated anatase used in Li-ion batteries has some special features: coexistence of Li-rich and Lipoor phases as well as two possible positions for Li ions in the oxygen tetrahedron. A theoretical description of ...
  • Photon kinetics in plasmas 
    Morozov, V.G.; Röpke, G. (Condensed Matter Physics, 2009)
    We present a kinetic theory of radiative processes in many-component plasmas with relativistic electrons and nonrelativistic heavy particles. Using the non-equilibrium Green's function technique in many-particle QED, ...
  • Properties of the two-dimensional spin-1/2 Heisenberg model on a honeycomb lattice with interlayer coupling 
    Löw, U. (Condensed Matter Physics, 2009)
    The magnetic properties of the two-dimensional S = 1/2 (quantum) antiferromagnetic Heisenberg model on a honeycomb lattice with and without interlayer coupling are studied by means of a continuous Euclidean time ...
  • Quasiparticles in the XXZ model 
    Lu, P.; Müller, G.; Karbach, M. (Condensed Matter Physics, 2009)
    The coordinate Bethe ansatz solutions of the XXZ model for a one-dimensional spin-1/2 chain are analyzed with focus on the statistical properties of the constituent quasiparticles. Emphasis is given to the special cases ...
  • Revealing novel quantum phases in quantum antiferromagnets on random lattices 
    Yu, R.; Haas, S.; Roscilde, T. (Condensed Matter Physics, 2009)
    Quantum magnets represent an ideal playground for the controlled realization of novel quantum phases and of quantum phase transitions. The Hamiltonian of the system can be indeed manipulated by applying a magnetic field ...
  • Spatially confined system interacting with Yukawa potential 
    Holovko, M.F.; Kravtsiv, I.Y.; Soviak, E.M. (Condensed Matter Physics, 2009)
    Hard wall confined fluid with Yukawa potential of interaction is considered. A solution of the inhomogeneous Ornstein-Zernike equation for the pair correlation function is obtained. The expression for the particle ...
  • Spin-3/2 Ising model on a two-layer Bethe lattice with FM/AFM interactions 
    Albayrak, E.; Yigit, A. (Condensed Matter Physics, 2009)
    Two-layer Bethe lattice whose lattice sites are occupied with spin-3/2 atoms is solved exactly by using the recursion relations in a pairwise approach for given coordination numbers q = 3, 4 and 6 with equal external magnetic ...
  • Spin models of quasi-1D quantum ferrimagnets with competing interactions 
    Ivanov, N.B. (Condensed Matter Physics, 2009)
    We present a brief survey of the recent theoretical work related to generic Heisenberg spin models describing quasi-one-dimensional quantum ferrimagnets. The emphasis is on quantum chains and ladders with strong competing ...

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