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Frequency Spectra of Fatigue of PZT and other Ferroelectric Thin Films

Published online by Cambridge University Press:  10 February 2011

Xiaofeng Du  and
I-Wei Chen
Xiaofeng Du
Affiliation:
Department of Materials Science and Engineering, University of Pennsylvania, PA 19104
I-Wei Chen
Affiliation:
Department of Materials Science and Engineering, University of Pennsylvania, PA 19104
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Abstract

Polarization and polarization fatigue of PZT and other ferroelectric thin films have been studied via the frequency spectra of D-E hysteresis. The coercive field (Ec) of PZT thin films has been found strongly dependent on the measuring frequency, while a relatively flat frequency response is observed with SrBi2Nb2O9 thin films. The different fatigue behavior can be attributed to such a difference in the frequency response. Physical models have been suggested to for domain wall movement in PZT and SrBi2Nb2O9 thin films. Based on these observations, a methodology has been proposed to evaluate the high frequency and fatigue properties of ferroelectric thin films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 493: Symposium U – Ferroelectric Thin Film VI , 1997 , 311
Copyright
Copyright © Materials Research Society 1998

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References

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