Influence of electric fields on dielectric properties of GPI ferroelectric

被引：8

作者：

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

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

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

Stasyuk, I. V. ^{[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：

CONDENSED MATTER PHYSICS | 2017年 / 20卷 / 02期

关键词：

ferroelectrics; electric field; polarization; dielectric permittivity; phase transition; DEUTERATED GLYCINE PHOSPHITE; PHASE-TRANSITION; CRYSTAL; DISPERSION; PRESSURE;

D O I：

10.5488/CMP.20.23706

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Using modified microscopic model of GPI by taking into account the piezoelectric coupling with strains epsilon(i) in the frames of two-particle cluster approximation, the components of polarization vector and static dielectric permittivity tensor of the crystal at applying the external transverse electric fields E-1 and E-3 are calculated. An analysis of the influence of these fields on thermodynamic characteristics of GPI is carried out. A satisfactory quantitative description of the available experimental data for these characteristics has been obtained at a proper choice of the model parameters.

引用

页数：17

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