Summary: Integrated Ferroelectrics, 71: 1­9, 2005
Copyright © Taylor & Francis Inc.
ISSN 1058-4587 print / 1607-8489 online
DOI: 10.1080/10584580590965005
Dielectric Permittivity and Pyroelectric Response
of Compositionally Graded Ferroelectrics
S. Zhong,1
S. P. Alpay,1,
Z.-G. Ban,1
and J. V. Mantese2
1
Department of Materials Science and Engineering and Institute of Materials Science,
University of Connecticut, Storrs, CT 06269
2
Delphi Research Laboratories, Shelby Township, Michigan 48315
ABSTRACT
A review of a thermodynamic model of polarization-graded ferroelectrics is presented.
Using this formalism, the unusual dielectric and pyroelectric properties of composi-
tionally graded ferroelectric films are analyzed. Results show that the "strength" of
the grading can be chosen as a design parameter to achieve desirable dielectric and

Source: Alpay, S. Pamir - Department of Materials Science and Engineering, University of Connecticut

Collections: Materials Science