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Influence of shear stress on the phase transition and physical properties of KD2PO4 type ferroelectrics
I. V. Stasyuk, R. R. Levitskii, I. R. Zachek +2
Within the four-particle cluster approximation for the proton ordering model we study the influence of shear stress on the phase transition, static dielectric, elastic and th…
Investigation of the Ising-type models within cluster approach
R. R. Levitskii, S. I. Sorokov
The method for calculation of the correlation functions of the Ising-type systems with short-range interaction and with arbitrary value of spin is developed within cluster approxim…
Relaxation dynamics of disordered Ising model. Two-site cluster approximation
R. R. Levitskii, S. I. Sorokov, R. O. Sokolovskii
Spin relaxation in a site-disordered Ising model within master equation approach is studied. The -dependent susceptibility of the model is calculated and investigated. E…
Correlation functions of quenched and annealed Ising systems
R. R. Levitskii, S. I. Sorokov
Spin correlation functions (up to the 3-site one) of disordered Ising model with the nearest neighbour interaction are calculated and investigated within a two-site cluster approxi…