Hydrostatic Pressure Effect on Relaxation of Quasi-One-Dimensional GPI Ferroelectric

I.R. Zachek; R.R. Levitskii; A.S. Vdovych

doi:10.15330/pcss.18.2.236-242

Authors

I.R. Zachek National University “Lvivska Politechnika”
R.R. Levitskii Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine
A.S. Vdovych Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine

DOI:

https://doi.org/10.15330/pcss.18.2.236-242

Keywords:

ferroelectrics, cluster approximation, dynamic dielectric permittivity, hydrostatic pressure

Abstract

Dynamic model of deformed quasi-one-dimensional ferroelectrics with hydrogen bonds is proposed. On the basis of this model within the two-particle cluster approximation with taking into account short-range and long-range interactions and strains ε_i and ε₅ in the frames of Glauber method a dynamic dielectric permittivity of mechanically clamped crystal is calculated. Hydrostatic pressure effect on temperature and frequency dependences of the components of dynamic dielectric permittivity tensor of GPI ferroelectric is investigated.

References

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