We calculated dynamic dielectric permittivity of the Rochelle salt within the Mitsui model, extended by piezoelectric interaction and transverse field. Calculations were based on the parameters derived earlier within the ...

Using modified microscopic model of GPI by taking into account the piezoelectric coupling with strains εi in the frames of two-particle cluster approximation, the components of polarization vector and static dielectric ...

We develop a theory for dielectric, piezoelectric, and elastic properties of partially deuterated (quenched disorder) crystals of Rochelle salt with taking into account the piezoelectric coupling. Results of numerical ...

Within the model proposed earlier, we study the effect of hydrostatic pressure on relaxational dynamics of deuterated KD₂PO₄ type ferroelectrics. Within the four particle approximation for deuteron ordering model and ...

Within the framework of proton model with taking into account the piezoelectric interaction with the shear strain ε₆, a dynamic dielectric response of KD₂PO₄ type ferroelectrics is considered. Experimentally observed phenomena ...

We elaborate a modification of the deformable two-sublattice Mitsui model of [Levitskii R.R. et al., Phys. Rev. B. 2003, 67, 174112] and [Levitskii R.R. et al., Condens. Matter Phys., 2005, 8, 881] that consistently takes ...

Within the four-particle cluster approximation for the proton ordering model, we study the effects of external pressures (which do not lower the crystals' symmetry) upon static and dynamic dielectric properties of ...

Two-site cluster approximation to Glauber's master equation is developed for lattice spin systems with substitutional chaos. Dynamic pair correlation functions of disordered Ising and Mitsui models are calculated. The ...

We consider a proton-glass model with an arbitrary range of competing interactions within two-particle cluster approximation for the free energy and within symmetric replica approach. We show that for the thermodynamic ...

The effect of external factors, such as dessicating/wetting, thermal annealing, uniaxial and hydrostatic pressure, on the dielectric permittivity of Rochelle salt crystals is investigated. The obtained results are ...