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Original Articles

Dielectric response in ferroelectric superlattices

, , , &
Pages 47-57 | Received 05 Aug 1996, Accepted 12 Jan 1997, Published online: 27 Sep 2006
 

Abstract

The dielectric response of a ferroelectric multilayer, having a designed heterogeneity, has been studied near its phase transition range by use of the Landau-Ginzburg theory. The coherent lattice coupling between ultrathin layers can be significantly strong, resulting in a broad phase transition of the superlattice system as a whole. The thickness of layers and their spatial distribution hold the keys for enhancing dielectric properties in a broad temperature range.

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