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Title: Electrical conductivity enhanced dielectric and ferroelectric properties of interface-coupled ferroelectric superlattices
Authors: Zhou, Yan
Shin, Franklin G.
Subjects: Superlattices
Ferroelectric materials
Electrical conductivity
Space charge
Interface structure
Issue Date: 15-Jul-2006
Publisher: American Institute of Physics
Source: Journal of applied physics, 15 July 2006, v. 100, no. 2, 024101, p. 1-7.
Abstract: We have developed a model to theoretically study the interplay of the effects of interfacial coupling and electrical conductivity on the ferroelectric and dielectric properties of superlattices consisting of alternating ferroelectric and paraelectric layers based on the Landau-Ginzburg theory. The qualitative predictions of the model are compared with recent experimental results for “symmetric” and “asymmetric” superlattices. It is shown that the consideration of time-dependent space-charge-limited conductivity and “interface structure” can satisfactorily account for the enhancement of the overall ferroelectric and dielectric properties of ferroelectric-paraelectric superlattices.
Rights: © 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Y. Zhou & F. G. Shin, J. Appl. Phys. 100, 024101 (2006) and may be found at
Type: Journal/Magazine Article
DOI: 10.1063/1.2208307
ISSN: 0021-8979 (print)
1089-7550 (online)
Appears in Collections:MRC Journal/Magazine Articles
AP Journal/Magazine Articles

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