Loading…

Dielectric properties of an antiferroelectric/ferroelectric BiFeO3/Co bilayer structure

A mixed-spin (5/2, 3/2) Ising model is established to describe the antiferroelectric/ferroelectric (AFE/FE) BiFeO3/Co bilayer structure. We study the effects of the crystal field, exchange coupling and external longitudinal electric field on the dielectric properties of the bilayer based on Monte Ca...

Full description

Saved in:
Bibliographic Details
Published in:Ceramics international 2020-10, Vol.46 (14), p.22907-22918
Main Authors: Chang, Chun-lu, Wang, Wei, Lv, Dan, Geng, Rui-ze, Liu, Jin-cheng, Huang, Han
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A mixed-spin (5/2, 3/2) Ising model is established to describe the antiferroelectric/ferroelectric (AFE/FE) BiFeO3/Co bilayer structure. We study the effects of the crystal field, exchange coupling and external longitudinal electric field on the dielectric properties of the bilayer based on Monte Carlo simulation. We illustrate the temperature dependence of polarization, susceptibility, internal energy and specific heat of the system in detail. As well, we depict the phase diagram and point out the rule of the blocking temperature with various parameters. In particular, we find rich and interesting multi-cycle electric hysteresis behaviors. The results show that these parameters play a crucial part in the physical properties of the AFE/FE BiFeO3/Co bilayer structure.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2020.06.064