Hysteresis loops of ferroelectric bilayers and superlattices

Chew, Khian Hooi and Tilley, D.R. and Ong, L.H. and Osman, J. (2000) Hysteresis loops of ferroelectric bilayers and superlattices. Applied Physics Letters, 77 (17). pp. 2755-2757. ISSN 0003-6951

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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].

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Ferroelectric bilayers, superlattices, antiferroelectric, Landau free energy
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 24 Jul 2013 03:09
Last Modified: 27 Aug 2019 07:27
URI: http://eprints.um.edu.my/id/eprint/8192

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