Zobrazeno 1 - 10
of 73
pro vyhledávání: '"I.R. Zachek"'
Publikováno v:
Condensed Matter Physics, Vol 23, Iss 3, p 33702 (2020)
We propose a two-sublattice proton ordering model for the quasione-dimensional CsH_2PO_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 subsystem. The m
Externí odkaz:
https://doaj.org/article/8c32b786a87b4247a4d864561c943902
Publikováno v:
Condensed Matter Physics, Vol 21, Iss 3, p 33702 (2018)
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:
https://doaj.org/article/5925e319fbae46c2bae573d633bd1df1
Publikováno v:
Condensed Matter Physics, Vol 21, Iss 1, p 13704 (2018)
Using a modified pseudospin model of NH_3CH_2COOH·H_2PO_3 ferroelectric taking into account the piezoelectric coupling with strains ε_i, ε_4, ε_5 and ε_6 within Glauber method in two-particle claster approximation, we have calculated components
Externí odkaz:
https://doaj.org/article/c5596eb5871847aab89c865273f60d31
Publikováno v:
Condensed Matter Physics, Vol 12, Iss 2, Pp 275-294 (2009)
Within the framework of the modified proton model with taking into account the interaction with the shear strain ε6, a dynamic dielectric response of ND4D2PO4 type antiferroelectrics is considered. Dynamics of the piezoelectric strain is taken into
Externí odkaz:
https://doaj.org/article/b10f0b107b6c40649cd752976b291361
Publikováno v:
Condensed Matter Physics, Vol 12, Iss 2, Pp 295-317 (2009)
Modified four-sublattice model for Rochelle salt by taking into account piezoelectric interactions with shear strain ε4 , ε5 and ε6 is proposed. Components of polarization vector and static dielectric permittivity tensor for both mechanically clam
Externí odkaz:
https://doaj.org/article/360845630a3440c8b68d23709530875f
Publikováno v:
Condensed Matter Physics, Vol 12, Iss 1, Pp 75-119 (2009)
Within the framework of the proposed unified proton ordering model for the ferroelectric compounds of the KH2PO4 family, in the four-particle cluster approximation for the short-range interactions and mean field approximation for the long-range inter
Externí odkaz:
https://doaj.org/article/464810a7796545d09f41fbe9a70b80af
Publikováno v:
Condensed Matter Physics, Vol 20, Iss 4, p 43707 (2017)
The model of NH_3CH_2COOH·H_2PO_3, modified by taking into account the piezoelectric coupling between the ordering structure elements and the strains ε_i, ε_j, is used for investigation of the effects that appear under external pressures. Within t
Externí odkaz:
https://doaj.org/article/edd1dd828df84e72b0c861beace91876
Publikováno v:
Condensed Matter Physics, Vol 18, Iss 4, p 43703 (2015)
Within the modified four-sublattice model of RbHSO_{4} with taking into account the piezoelectric coupling to the strains ε_{i}, ε_{4}, ε_{5}, and ε_{6}, the polarization components, static and dynamic dielectric permittivity of clamped and free
Externí odkaz:
https://doaj.org/article/5740caf235444b4d91efb02c8e1be32c
Publikováno v:
Condensed Matter Physics, Vol 17, Iss 4, p 43703 (2014)
The proton ordering model for the KH2PO4 type ferroelectrics is modified by taking into account the dependence of the effective dipole moments on the proton ordering parameter. Within the four-particle cluster approximation we calculate the crystal p
Externí odkaz:
https://doaj.org/article/915a70f9c6d24719860d651e6cf6fd3b
Publikováno v:
Condensed Matter Physics, Vol 17, Iss 4, p 43702 (2014)
Within the modified model of proton ordering of one-dimensional ferroelectric having hydrogen bonds of PbHPO4-type, their thermodynamic and dynamic characteristics are studied and calculated taking into account the linear (by crystal deformations ϵi
Externí odkaz:
https://doaj.org/article/c0a0939902d24983aed9ee948d7b2d92