Document Type
Article
Publication Date
1-1-2000
Abstract
A ferroelectric superlattice with an antiferroelectric interfacial coupling is considered; the same model describes a bilayer with antiferroelectric coupling. By mapping minimum points in the Landau free energy expression and plotting them against the applied electric field, a triple hysteresis loop pattern is obtained. The loop patterns vary between typically ferroelectric and typically antiferroelectric depending on the layer thicknesses and the magnitude of the interfacial-coupling constant. This work suggests the possibility of designing multilayer elements for computer memories with four or more different storage states. (C) 2000 American Institute of Physics. [S0003-6951(00)03843-2].
Keywords
Ferroelectric bilayers, superlattices, antiferroelectric, Landau free energy
Publication Title
Applied Physics Letters
ISSN
0003-6951
Recommended Citation
Chew, Khian Hooi; Tilley, D.R.; Ong, L.H.; and Osman, J., "Hysteresis loops of ferroelectric bilayers and superlattices" (2000). Research Publications (2000 to 2005). 151.
https://knova.um.edu.my/research_publications_2000_2005/151
Divisions
PHYSICS
Volume
77
Issue
17
Publisher
AIP Publishing
Additional Information
Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA