Open AccessОсобенности поведения доменной структуры кристаллов BaTiO-=SUB=-3-=/SUB=- в процессе термического нагрева и охлаждения-=SUP=-*-=/SUP=-
Author(s) -
Д.А. Киселев,
Т.С. Ильина,
М.Д. Малинкович,
О.Н. Сергеева,
Н.Н. Большакова,
Е.М. Семенова,
И. В. Кузнецова
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.04.45684.01d
Subject(s) - curie temperature , barium titanate , ferroelectricity , materials science , phase transition , polarization (electrochemistry) , crystal structure , piezoelectricity , condensed matter physics , atmospheric temperature range , crystal (programming language) , crystallography , phase (matter) , domain (mathematical analysis) , optics , optoelectronics , chemistry , dielectric , physics , composite material , thermodynamics , computer science , mathematical analysis , mathematics , organic chemistry , ferromagnetism , programming language
This paper presents the results of the study of the domain structure of barium titanate crystals in a wide temperature range including the Curie point ( T _C) using the polarization-optical method in the reflected light and the force microscopy of the piezoelectric response. It is shown that a new a–c domain structure forms during cyclic heating of the crystal above T _C and subsequent cooling to the ferroelectric phase. The role of uncompensated charges appeared on the crystal surface during the phase transition and their influence on the formation of the domain structure during cooling are discussed.