Effect of thickness ratio on ferroelectric polarization and hysteresis behaviors of BaTiO3/SrTiO3 superlattices
Document Type
Article
Publication Date
12-29-2021
Abstract
We study the effect of thickness ratio on the ferroelectric polarization and hysteresis behaviors of BaTiO3/SrTiO3 superlattices using Landau-Ginzburg-Devonshire theory by considering the electrostatic coupling and interface intermixing. Interface intermixing gives rise to inhomogeneous internal electric field and polarization in superlattices. The hysteresis loops of polarization and internal electric field as a function of the applied electric field are investigated by varying the thickness ratio of the superlattices. The hysteresis loops for each individual layer are calculated. The effects of thickness ratio on remnant polarization, remnant internal electric field and coercive field are examined.
Keywords
Ferroelectric, Superlattices, Landau-Ginzburg-Devonshire theory, Hysteresis
Divisions
PHYSICS
Funders
Fundamental Research Grant Scheme (FRGS), Ministry of Higher Education Malaysia [FRGS/1/2018/STG02/USMC/03/1]
Publication Title
Integrated Ferroelectrics
Volume
223
Issue
1
Publisher
Taylor & Francis Ltd
Publisher Location
2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND