INFLUENCE OF UNIAXIAL PRESSURES ON DYNAMIC PROPERTIES OF NH3CH2COOH center dot H2PO3 FERROELECTRIC

被引：0

作者：

Zachek, I. R. ^{[1
]}

Levitskii, R. R. ^{[2
]}

Vdovych, A. S. ^{[2
]}

机构：

[1] Lviv Polytech Natl Univ, 12 Bandera St, UA-79013 Lvov, Ukraine

[2] Natl Acad Sci Ukraine, Inst Condensed Matter Phys, 1 Svientsitskii St, UA-79011 Lvov, Ukraine

来源：

JOURNAL OF PHYSICAL STUDIES | 2018年 / 22卷 / 02期

关键词：

ferroelectrics; dielectric permittivity; relaxation time; uniaxial pressure;

D O I：

10.30970/jps.22.2702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a modified model of NH3CH2COOH center dot H2PO3 ferroelectric by taking into account the piezoelectric coupling with strains epsilon(i) within the Glauber method in a two-particle cluster approximation, the system of kinetic equations for mean values of pseudospins has been obtained. On the basis of the solutions of these equations we obtained the expressions for the components of the dynamic dielectric permittivity tensor of GPI and the relaxation times of the model. The influence of uniaxial pressures on these characteristics at different temperatures and frequencies have been studied.

引用

页数：12

共 11 条

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