Monte Carlo study of the polarization and depolarization properties of order-disorder ferroelectrics

Citation
Gw. Lu et al., Monte Carlo study of the polarization and depolarization properties of order-disorder ferroelectrics, MAT SCI E B, 87(2), 2001, pp. 130-133
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
ISSN journal
0921-5107 → ACNP
Volume
87
Issue
2
Year of publication
2001
Pages
130 - 133
Database
ISI
SICI code
0921-5107(20011115)87:2<130:MCSOTP>2.0.ZU;2-D
Abstract
The spontaneous polarization and depolarization in order-disorder ferroelec trics are studied using a Monte Carlo computer simulation method. Our study has been developed in a framework of the transverse field Ising model with the nearest-neighbor interaction. Two effects of tunneling frequency and e xternal electrical field on the polarization and depolarization are taken i nto consideration. From our simulation results, the polarization of order-d isorder ferroelectrics decreases significantly with the increase in tunneli ng frequency. The remnant polarization and the saturation coercive force of these ferroelectrics are also calculated, and a good agreement with previo us theoretical and experimental results is obtained. (C) 2001 Elsevier Scie nce B.V. All rights reserved.