Summary: Integrated Ferroelectrics, 71: 19, 2005
Copyright © Taylor & Francis Inc.
ISSN 1058-4587 print / 1607-8489 online
Dielectric Permittivity and Pyroelectric Response
of Compositionally Graded Ferroelectrics
S. P. Alpay,1,
and J. V. Mantese2
Department of Materials Science and Engineering and Institute of Materials Science,
University of Connecticut, Storrs, CT 06269
Delphi Research Laboratories, Shelby Township, Michigan 48315
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