Effect of hydrostatic pressure on dynamic dielectric characteristics of CsH_2PO_4 ferroelectric

Based on the pseudospin model of the deformed CsH_2PO_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. Using the solution of the equation, we find expressions...

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Bibliographic Details
Published in:Condensed matter physics 2022-06, Vol.25 (2), p.23701
Main Authors: A. S. Vdovych, R. R. Levitskii, I. R. Zachek
Format: Article
Language:English
Subjects:
ferroelectric phase transition
ferroelectricity
mechanical deformation
permittivity
Online Access:Get full text
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Summary:Based on the pseudospin model of the deformed CsH_2PO_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. Using the solution of the equation, we find expressions for the longitudinal dynamic dielectric constant and relaxation time. Based on the proposed parameters of the theory, the temperature and frequency dependences of the dynamic dielectric constant and the temperature dependence of the relaxation time are calculated and investigated. A detailed numerical analysis of the obtained results was performed. The influence of hydrostatic pressure on the dynamic characteristics of CsH_2PO_4 is studied.
ISSN:1607-324X
2224-9079
DOI:10.5488/CMP.25.23701