Switching dynamics in ferroelectric superlattices

Chew, Khian Hooi and Iwata, M. and Ong, L.H. (2011) Switching dynamics in ferroelectric superlattices. Current Applied Physics, 11 (3). pp. 755-761. ISSN 1567-1739

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Abstract

Dynamics of polarization switching in a superlattice, consisting of alternating ferroelectric and parelectric layers, is studied by the Landau Khalatnikov equation. The dependence of switching time on the dielectric stiffness of the paraelectric layer, interface coupling and layer thicknesses is examined in detail. The spatial distribution of polarizations at different time in switching is illustrated. The results are discussed with those obtained using the model as proposed by Qu et al. [B.D. Qu, W.L. Zhong and R.H. Prince, Phys. Rev. B 55, 11218 (1997)]. Our results show that the two models give a similar qualitative description of switching dynamics. (C) 2010 Elsevier B.V. All rights reserved.

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Polarization Reversals; Phase-Transitions; Landau Theory; Heterostructures; Films
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 29 Jul 2013 00:04
Last Modified: 13 Mar 2019 04:37
URI: http://eprints.um.edu.my/id/eprint/8234

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