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Piezoelectric Characterisation of Ferroelectric PZT Thin Films Using an Improved Vibrating Beam Method

Published online by Cambridge University Press:  10 February 2011

E. Defay ,
N. Baboux ,
C. Malhaire ,
P. Kleimann  and
D. Barbier
E. Defay
Affiliation:
LPM, INSA de Lyon, UMR 5511, Bât 502, 69621 VILLEURBANNE Cedex, France defay@insa-lyon.fr
N. Baboux
Affiliation:
LPM, INSA de Lyon, UMR 5511, Bât 502, 69621 VILLEURBANNE Cedex, France
C. Malhaire
Affiliation:
LPM, INSA de Lyon, UMR 5511, Bât 502, 69621 VILLEURBANNE Cedex, France
P. Kleimann
Affiliation:
LPM, INSA de Lyon, UMR 5511, Bât 502, 69621 VILLEURBANNE Cedex, France
D. Barbier
Affiliation:
LPM, INSA de Lyon, UMR 5511, Bât 502, 69621 VILLEURBANNE Cedex, France
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Abstract

This study proposes an improvement of the free vibrating beam method allowing characterization of the d31 coefficients of piezoelectric thin films. Preparation and piezoelectric characterization of PZT thin films are shown. An analytical model of the beam and the thin film is developed. Finite element modeling allows for definition of the validity conditions of the model. A numerical fitting of the model to the experimental values exhibits an excellent overlap. We obtain d31 values from 10 pC/N to 14 pC/N. Advantages of this method are shown compared to the first maximum voltage method.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 541: Symposium O – Ferroelectric Thin Films VII , 1998 , 611
Copyright
Copyright © Materials Research Society 1999

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References

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