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Condensed Matter Physics, 2001, том 4
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Перегляд Condensed Matter Physics, 2001, том 4 за датою випуску

Перегляд Condensed Matter Physics, 2001, том 4 за датою випуску

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Electron density of states and spectrum of disordered s-d model

Rudavskii, Yu.K.; Ponedilok, G.V.; Dorosh, L.A. (Condensed Matter Physics, 2001)

Structurally disordered s-d model of magnetism in metals is investigated. The simplified model of binary alloy structure is offered, the structural correlation functions are calculated. The self-consistent equations for ...
Compaction of granular graphite in a vertically vibrating container with restricted geometry

Gerasimov, O.I.; Idomskyy, V.A.; Schram, P.P.-J.M. (Condensed Matter Physics, 2001)

The compaction of vertically vibrating granular materials (highly dissipative media composed of macroscopic grains that interact by means of contact forces) with restricted geometry is examined stroboscopically. Possible ...
Some aspects of tight-binding approach in chemisorption theory

Rudavskii, Yu.; Ponedilok, G.; Petriv, Yu. (Condensed Matter Physics, 2001)

The quantum-statistic problem of atoms chemisorption with hydrogen-like electronic structure on semiconductor and dielectric crystalline surfaces is considered. The superficial states are described in tight-binding ...
Materials of the round table “Phase transitions and critical phenomena: past, present, and future”

Автор відсутній (Condensed Matter Physics, 2001)

The paper contains materials of the discussion concerning phase transitions and critical phenomena which took place during the Workshop on modern problems of soft matter theory (August 27–31, 2000, Lviv, Ukraine).
3D Ising system in an external field. Recurrence relations for the asymmetric ρ⁶ model

Pylyuk, I.V.; Kozlovskii, M.P. (Condensed Matter Physics, 2001)

The 3D one-component spin system in an external magnetic field is studied using the collective variables method. The integration of the partition function of the system over the phase space layers is performed in the ...
Strong coupling Hartree-Fock approximation in the dynamical mean-field theory

Shvaika, A.M. (Condensed Matter Physics, 2001)

In the limit of infinite spatial dimensions, a thermodynamically consistent theory, which is valid for arbitrary value of the Coulombic interaction ( U < ∞ ), is built for the Hubbard model when the total auxiliary ...
Pressure-temperature phase diagram of the generalized Hubbard model with correlated hopping at half-filling

Didukh, L.; Hankevych, V. (Condensed Matter Physics, 2001)

In the present paper, the pressure-temperature phase diagram of a generalized Hubbard model with correlated hopping in a paramagnetic state at half-filling is determined by means of a generalized mean-field approximation in ...
Monte Carlo and molecular dynamics studies for the colour rewritable films

Okajima, H.; Kawamura, T.; Kongo, C.; Hiwatari, Y.; Urakami, N.; Hayashi, R.; Kato, K. (Condensed Matter Physics, 2001)

The structure of the developers plays an important role in the colouring/decolouring process for the colour rewritable films. We study the chain-like polymers structure of the developer through both the Monte Carlo ...
Classical relativistic system of N charges. Hamiltonian description, forms of dynamics, and partition function

Duviryak, A.; Nazarenko, A.; Tretyak, V. (Condensed Matter Physics, 2001)

The procedure of reducing canonical field degrees of freedom for a system of charged particles plus field in the constrained Hamiltonian formalism is elaborated up to the first order in the coupling constant expansion. The ...
Ab initio derivation of interatomic interactions in transition metals

Gurskii, Z.; Krawczyk, J. (Condensed Matter Physics, 2001)

An approach to the ab-initio calculation of many-body interatomic potentials in transition metals (TM) is developed. It is based on utilizing the local spin density approximation and linear superposition assumption for ...
An integral equation approach to orientational phase transitions in two and three dimensional disordered systems

Lomba, E.; Lado, F.; Weis, J.J. (Condensed Matter Physics, 2001)

The use of inhomogeneous Ornstein-Zernike equations to analyze phase transitions and ordered phases in magnetic systems is explored both in bulk three dimensional disordered Heisenberg systems and in a simple model for ...
On biaxiality of photoinduced structures in azopolymer films

Kiselev, A.; Yaroshchuk, O.; Zakrevskyy, Yu.; Tereshchenko, A. (Condensed Matter Physics, 2001)

Spatial orientational structures in the layers of liquid crystalline polymalonates are investigated using UV absorption method and the results of the null ellipsometry technique. Preferential in-plane alignment of ...
On the critical behaviour of random anisotropy magnets

Dudka, M.; Folk, R.; Holovatch, Yu. (Condensed Matter Physics, 2001)

The effect of a local anisotropy of random orientation on a ferromagnetic phase transition is studied. To this end, a model of a random anisotropy magnet is analysed by means of a field theoretical renormalization ...
Ferromagnetic ordering in a generalized Hubbard model

Didukh, L.; Kramar, O.; Skorenkyy, Yu. (Condensed Matter Physics, 2001)

The present paper considers ferromagnetic ordering in the Hubbard model generalized by taking into account the inter-atomic exchange interaction and the correlated hopping in a partially filled narrow band. Expressions for ...
Pseudospin-electron model in the self-consistent gaussian fluctuation approximation

Stasyuk, I.V.; Tabunshchyk, K.V. (Condensed Matter Physics, 2001)

Pseudospin-electron model with an effective many-body interaction between pseudospins via conducting electrons is investigated within the generalized random phase approximation scheme with the self-consistent inclusion of ...
A molecular dynamics study of Li-doped borate glasses

Varsamis, Ch.-P.E.; Vegiri, A.; Kamitsos, E.I. (Condensed Matter Physics, 2001)

The objective of this work is to investigate the effect of alkali content and temperature on the microstructure of lithium borate glasses, xLi₂O · (1 − x)B₂O₃. We have applied the molecular dynamics technique with ...
Non-resonant Raman scattering through a metal-insulator transition: an exact analysis of the Falicov-Kimball model

Freericks, J.K.; Devereaux, T.P. (Condensed Matter Physics, 2001)

For years, theories for Raman scattering have been confined to either the insulating or fully metallic state. While much can be learned by focusing attention on the metal or insulator, recent experimental work on the ...
Collective density fluctuations and dynamics of ions in water studied by the interaction-site model of liquids

Hirata, F.; Chong, S.-H. (Condensed Matter Physics, 2001)

The collective excitations in water are studied based on the interactionsite model of liquids. Three collective modes, extracted from a generalized Langevin equation combined with the RISM theory of liquids, are ...
Thermodynamics of conformation and deformation of linear polymeric chains in solution

Medvedevskikh, Yu.G. (Condensed Matter Physics, 2001)

Thermodynamics of conformation and deformation of linear polymeric chains in a solution is built based on the statistics of self-avoiding walks. The entropy and free energy of conformation of a polymeric chain is ...
Workshop “Modern problems of Soft Matter Theory”

Barthel, J.; Mryglod, I. (Condensed Matter Physics, 2001)

The two subsequent issues of the journal “Condensed Matter Physics” contain the papers submitted to the Workshop “Modern problems of Soft Matter Theory”1 .

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Перегляд Condensed Matter Physics, 2001, том 4 за датою випуску

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