Polarization modulation profiles in ferroelectric superlattices
Document Type
Article
Publication Date
1-1-2009
Abstract
A Landau-Ginzburg continuum model for describing a periodic superlattice consisting of alternating ferroelectric and paraelectric layers is presented. An interface coupling term is introduced to describe the interaction at the interface between the two constituent layers. Explicit expressions to describe the order parameter profiles were derived and illustrated. Our study reveals that the interface-induced polarizations in the paraelectric layer plays an important role to determine the polarization modulation profile of a ferroelectric superlattice.
Keywords
Ferroelectric, Landau-ginzburg theory, Polarization profile, Superlattice, Epitaxial batio3/srtio3 superlattices, Enhancement, Transition
Divisions
PHYSICS
Publication Title
Ferroelectrics Letters Section
Volume
36
Issue
1-2
Additional Information
Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA