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6 papers
Influence of external factors on dielectric permittivity of Rochelle salt: humidity, annealing, stresses, electric field
A. G. Slivka, V. M. Kedyulich, R. R. Levitskii +3
The present work contains results of experimental investigation of external factors, such as dessicating/wetting, thermal annealing, uniaxial and hydrostatic pressures on dielectri…
Longitudinal Field Influence on the Phase Transition and Physical Properties of the Kh2po4 Family Ferroelectrics
R. R. Levitskii, A. P. Moina, B. M. Lisnii
We verify whether the previously developed model of a KD2PO4 crystal, with the shear strain eps6 taken into account, is able to describe the longitudinal electric field E3 influenc…
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…