920 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Academy of Sciences of UkraineUA354 papers
- Lviv UniversityUA86 papers
- Coventry UniversityGB63 papers
- Lviv Polytechnic National UniversityUA61 papers
- Johannes Kepler University of LinzAT57 papers
- Centre National de la Recherche ScientifiqueFR55 papers
- Otto-von-Guericke-Universität MagdeburgDE42 papers
- University of Pavol Jozef ŠafárikSK27 papers
- Université de LorraineFR26 papers
- Georgetown UniversityUS21 papers
- Max Planck Institute for the Physics of Complex SystemsDE20 papers
- Institute of Physical ChemistryPL16 papers
12 papers · 2 filters
Enhanced magnetoelectric effect near a field-driven zero-temperature quantum phase transition of the spin-1/2 Heisenberg-Ising ladder
Jozef Strečka, Lucia Gálisová, Taras Verkholyak
Magnetoelectric effect of the spin-1/2 Heisenberg-Ising ladder in a presence of the external electric and magnetic fields is rigorously examined by taking into account Katsura-Naga…
Peculiarities in pseudo-transitions of a mixed spin- Ising-Heisenberg double-tetrahedral chain in an external magnetic field
Onofre Rojas, Jozef Strečka, Oleg Derzhko +1
Recently, it has been rigorously verified that several one-dimensional (1D) spin models may exhibit a peculiar pseudo-transition accompanied with anomalous response of thermodynami…
Towards low-temperature peculiarities of thermodynamic quantities for decorated spin chains
Taras Krokhmalskii, Taras Hutak, Onofre Rojas +2
We discuss the origin of an enigmatic low-temperature behavior of one-dimensional decorated spin systems which was coined the pseudo-transition. Tracing out the decorated parts res…
Reference approach in theory of pseudospin systems
R. R. Levitskii, S. I. Sorokov, O. R. Baran
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…
Pair correlation functions of the Ising type model with spin 1 within two-particle cluster approximation
O. R. Baran, R. R. Levitskii
The Blume-Emery-Griffiths model on hypercubic lattices within the two-particle cluster approximation is investigated. The expressions for the pair correlation functions in …
Phase diagrams of spin-1 Ising model with bilinear and quadrupolar interactions under magnetic field. Two-particle cluster approximation
R. R. Levitskii, O. R. Barana, B. M. Lisnii
The spin-1 Ising model with bilinear and quadrupolar short-range interactions under magnetic field is investigated within the two-particle cluster approximation. It is shown that f…
Influence of transverse field on the spin-3/2 Blume-Capel model on rectangular lattice
O. Baran, R. Levitskii
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 i…
Phase diagrams of spin-3/2 Blume-Capel model on rectangular lattice under longitudinal magnetic field
O. Baran, R. Levitskii
The spin-3/2 Blume-Capel model on a rectangular lattice with the ferromagnetic bilinear short-range interaction in one direction and the anti-ferromagnetic one $…
Ising model with invisible states on scale-free networks
Petro Sarkanych, Mariana Krasnytska
We consider the Ising model with invisible states on scale-free networks. Our goal is to investigate the interplay between the entropic and topological influence on a phase transit…
Cluster-based Haldane phases, bound magnon crystals and quantum spin liquids of a mixed spin-1 and spin-1/2 Heisenberg octahedral chain
Katarina Karlova, Jozef Strecka, Taras Verkholyak
The mixed spin-1 and spin-1/2 Heisenberg octahedral chain with regularly alternating monomeric spin-1 sites and square-plaquette spin-1/2 sites is investigated using variational te…
The effect of short-range interaction and correlations on the charge and electric field distribution in a model solid electrolyte
T. Patsahan, G. Bokun, D. di Caprio +2
A simple lattice model of a solid electrolyte presented as a xy-slab geometry system of mobile cations on a background of energetic landscape of the host system and a compensating…
A simple closure procedure for the study of velocity autocorrelation functions in fluids as a "bridge" between different theoretical approaches
V. V. Ignatyuk, I. M. Mryglod, T. Bryk
Velocity autocorrelation functions (VAF) of the fluids are studied on short- and long-time scales within a unified approach. This approach is based on an effective summation of the…