Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Levitskii, R. R."'
Publikováno v:
Condensed Matter Physics, 2022, vol. 25, No. 4, 43711
To investigate the caloric effects in the CsH$_2$PO$_4$ ferroelectric, a modified pseudospin model of this crystal is used, which takes into account the dependence of the parameters of interaction between pseudospins on lattice strains. The model als
Externí odkaz:
http://arxiv.org/abs/2301.01544
Publikováno v:
Condensed Matter Physics, 2022, vol. 25, No. 2, 23701
Based on the pseudospin model of the deformed CsH$_2$PO$_4$ crystal within the Glauber method, the equation for the time-dependent mean value of the pseudospin is obtained, which is solved in the case of small deviations from the equilibrium state. U
Externí odkaz:
http://arxiv.org/abs/2206.15259
Publikováno v:
Condens. Matter Phys., 2020, vol. 23, No. 3, 33702
We propose a two-sublattice proton ordering model for the quasione-dimensional CsH$_2$PO$_4$ ferroelectric with hydrogen bonds, which takes into account linear on lattice strains $u_1$, $u_2$, $u_3$ and $u_5$ contribution to the energy of proton subs
Externí odkaz:
http://arxiv.org/abs/2009.14688
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
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
Publikováno v:
Eur. Phys. J. B 50 (2006) 439-443
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 for those values of the quadrupolar interaction when at zero magnetic f
Externí odkaz:
http://arxiv.org/abs/1905.07513
Publikováno v:
Condens. Matter Phys., 2018, vol. 21, No. 3, 33702
To study the effects appearing under mechanical stresses, we have used the model of glycinium phosphite ferroelectric, modified by taking into account the piezoelectric coupling of ordering structure elements with lattice strains. In the frames of tw
Externí odkaz:
http://arxiv.org/abs/1809.09944
Publikováno v:
Condens. Matter Phys., 2018, vol. 21, No. 1, 13704
Using a modified pseudospin model of NH$_3$CH$_2$COOH$\cdot$H$_2$PO$_3$ ferroelectric taking into account the piezoelectric coupling with strains $\varepsilon_i$, $\varepsilon_4$, $\varepsilon_5$ and $\varepsilon_6$ within Glauber method in two-parti
Externí odkaz:
http://arxiv.org/abs/1803.11428
Publikováno v:
Condens. Matter Phys., 2017, vol. 20, No. 4, 43707
The model of NH$_3$CH$_2$COOH$\cdot$H$_2$PO$_3$, modified by taking into account the piezoelectric coupling between the ordering structure elements and the strains $\varepsilon_i$, $\varepsilon_j$, is used for investigation of the effects that appear
Externí odkaz:
http://arxiv.org/abs/1712.05369
Publikováno v:
Condens. Matter Phys., vol. 20, No. 2, 23706 (2017)
Using modified microscopic model of GPI by taking into account the piezoelectric coupling with strains $\varepsilon_i$ in the frames of two-particle cluster approximation, the components of polarization vector and static dielectric permittivity tenso
Externí odkaz:
http://arxiv.org/abs/1707.00619