Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25037
Title: Simulation of stress-induced enhanced dielectric permittivity in ferroelectric superlattice
Authors: Lo, VC
Jiang, W
Keywords: Enhanced permittivity
Strain
Superlattice
Issue Date: 2006
Publisher: Taylor & Francis
Source: Integrated ferroelectrics, 2006, v. 78, no. 1, p. 35-43 How to cite?
Journal: Integrated ferroelectrics 
Abstract: A ferroelectric superlattice is composed of alternative stacks of two different ferroelectric materials. It has been demonstrated that enhanced dielectric permittivity occurs when the stacking periodicity is reduced down to a few monolayers. In this paper, this enhancement is numerically simulated by Landau-Khatalnikov theory. In-plane interfacial strain exists between adjacent stacks due to lattice mismatch, where the signs of the strain are different on the different sides of the interface. The dielectric enhancement for small periodicity, as observed from experiments, can be reproduced. Moreover, it is found that this enhancement increases with the number of periods. Both of these results reflect the relatively important influence of the in-plane interfacial strain. This is the first theoretical work to simulate the enhanced dielectric permittivity of ferroelectric superlattice.
URI: http://hdl.handle.net/10397/25037
ISSN: 1058-4587
EISSN: 1607-8489
DOI: 10.1080/10584580600657096
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

2
Last Week
0
Last month
0
Citations as of Jul 29, 2017

WEB OF SCIENCETM
Citations

2
Last Week
0
Last month
0
Citations as of Aug 21, 2017

Page view(s)

24
Last Week
1
Last month
Checked on Aug 21, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.