Výsledky vyhledávání - "Baran, O. A."

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Reference approach in theory of pseudospin systems

Autor: Levitskii, R. R., Sorokov, S. I., Baran, O. R.

Publikováno v: Condens. Matter Phys. 3, No 3(23) (2000) 515-543

For theoretical description of pseudospin systems with essential short-range and long-range interactions we use the method based on calculations of the free energy functional with taking into account the short-range interactions within the reference

Externí odkaz: http://arxiv.org/abs/1905.07745

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Pair correlation functions of the Ising type model with spin 1 within two-particle cluster approximation

Autor: Baran, O. R., Levitskii, R. R.

Publikováno v: physica status solidi (b) 219, issue 2 (2000) 357-364

The Blume-Emery-Griffiths model on hypercubic lattices within the two-particle cluster approximation is investigated. The expressions for the pair correlation functions in $\bf{k}$-space are derived. On the basis of obtained results (at $\bf{k}=0$) t

Externí odkaz: http://arxiv.org/abs/1905.07586

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Influence of transverse field on the spin-3/2 Blume-Capel model on rectangular lattice

Autor: Baran, O., Levitskii, R.

Publikováno v: Journal of Magnetism and Magnetic Materials 324 (2012) 3778-3783

Transverse field effect on thermodynamic properties of the spin-3/2 Blume-Capel model on rectangular lattice in which the interactions in perpendicular directions differ in signs is studied within the mean field approximation. Phase diagrams in the (

Externí odkaz: http://arxiv.org/abs/1905.05852

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Phase diagrams of spin-3/2 Blume-Capel model on rectangular lattice under longitudinal magnetic field

Autor: Baran, O., Levitskii, R.

Publikováno v: Physica B 408 (2013) 88-94

The spin-3/2 Blume-Capel model on a rectangular lattice with the ferromagnetic bilinear short-range interaction $K^{\rm F}=K(1+x)$ in one direction and the anti-ferromagnetic one $K^{\rm AF}=K(-1+x)$ in the perpendicular direction under a longitudina

Externí odkaz: http://arxiv.org/abs/1905.05674

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