INFLUENCE OF ELECTRIC FIELD E 3 ON THE PHASE TRANSITION AND THERMODYNAMIC CHARACTERISTICS OF GPI FERROELECTRICS

Journal of physical studies

article

R. R. Levitskii¹  I. R. Zachek²  A. S. Andrushchak² 

[1] Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine;Lviv Polytechnic National University

关键词: ferroelectrics;    phase transition;    dielectric permittivity;    piezomoduli;    electric field.;   

DOI  :  10.30970/jps.26.3601

学科分类：物理（综合）

来源: Vydavnychyi Tsentr L vivs koho Natsional noho Universytetu imeni Ivana Franka

【 摘 要 】

Using the proposed model of the GPI ferroelectrics within the framework of the two-particle cluster approximation, the components of polarization vector and static dielectric permittivity tensor, piezoelectric characteristics, and molar specific heat of the crystal presence of the electric field $E_3$ are calculated. A possibility of appearance of the first order phase transition in the crystal is analyzed; the temperature and field behavior of the calculated thermodynamic characteristics are explored.

【 授权许可】

CC BY