Open AccessPHASE TRANSITION IN FERROELECTRIC FILMS WITH DOMAIN STRUCTURE
Author(s) -
Chunlei Wang,
W. L. Zhong,
Peilin Zhang
Publication year - 1993
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.42.1703
Subject(s) - ferroelectricity , curie temperature , condensed matter physics , materials science , phase transition , domain (mathematical analysis) , polarization (electrochemistry) , domain wall (magnetism) , ferroics , physics , ferromagnetism , optoelectronics , quantum phase transition , magnetization , quantum mechanics , chemistry , quantum critical point , dielectric , mathematical analysis , mathematics , magnetic field
The phase transition characteristics of ferroelectric films with domain structure were studied using Landau free energy expansion. The existence of domain walls reduces both the spontaneous polarization and the Curie temperature, and increases the critical size. The reversal length moves away from the surfaces as temperature increases. As the film becomes thinner, the film will turn into single domain.