Please use this identifier to cite or link to this item:
Title: Phenomenological model for the dielectric enhancement in compositionally graded ferroelectric films
Authors: Wong, C. K.
Shin, Franklin G.
Subjects: Ferroelectric thin films
Size effect
Ginzburg-Landau theory
Optical susceptibility
Ferroelectric transitions
Issue Date: 13-Feb-2006
Publisher: American Institute of Physics
Source: Applied physics letters, 13 Feb. 2006, v. 88, no. 7, 072901, p. 1-3
Abstract: The dielectric enhancement observed in compositionally graded ferroelectric films is explained by use of a multilayer model. The finite size effect of the ferroelectric layers has been taken into account. This is tackled by the employment of Landau–Ginzburg thermodynamic theory for each layer. The calculated dielectric susceptibility of the graded film reveals significant enhancement for temperatures below the phase transition point, and is greater in a continuously graded film than in one with a step gradient in composition.
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 C. K. Wong and F. G. Shin, Appl. Phys. Lett. 88, 072901 (2006) and may be found at
Type: Journal/Magazine Article
DOI: 10.1063/1.2175496
ISSN: 0003-6951 (print)
1077-3118 (online)
Appears in Collections:AP Journal/Magazine Articles

Files in This Item:
File Description SizeFormat 
Wong_Phenomenological_Model_Films.pdf80.84 kBAdobe PDFView/Open

All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated. No item in the PolyU IR may be reproduced for commercial or resale purposes.