Open AccessSome dynamic features of ferroelectric thin films
Author(s) -
M. O. Levi,
В. В. Калинчук,
В. Б. Широков
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1260/9/092004
Subject(s) - materials science , ferroelectricity , substrate (aquarium) , thin film , barium titanate , phase (matter) , composite material , oxide , optoelectronics , nanotechnology , dielectric , metallurgy , ceramic , chemistry , oceanography , organic chemistry , geology
The dynamic problem of the surface acoustic wave propagation in a thin-film structure is investigated. The propagation of plane waves in the film-substrate structure is considered. Thin film is made of barium titanate oxide, and solid substrate is made of magnesium oxide. Ferroelectric film is subjected to misfit strain because of the deposition. Assumed that the solid substrate retains its properties due to the large difference in the hardness of the materials. Built Green function, obtained phase velocities and electromechanical coupling coefficients in the C-phase of BaTiO3. The present investigation is of practical interest for developing high-frequencies smart ferroelectric devices for engineering applications.