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| Investigation of the ferroelectric domain of PZT ceramic |
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| 电子科技大学 |
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Cite this article:
. Investigation of the ferroelectric domain of PZT ceramic. Chin J Mater Res, 2004, 18(5): 506-510.
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Abstract Scanning force microscope (SFM) was applied to observe the ferroelectric domains of
PZT ceramic with rough surface. Domains in-plane and out-plane were detected using
piezoresponse in longitudinal and transverse directions, respectively. The influence
of the big grains on the imaging of the ceramic surface was investigated. A method
in which exact 3D domain structure of coarse sample can be obtained was suggested.
Different from other methods of observing ferroelectric domains, PFM was adapted to
the ferroelectric bulk ceramic that had never been polished. The as--grown domain
structure was observed. The observation of domain in PZT ceramic
confirms that the main reason for the formation of domain in grains with less
stress is the decreasing of depolarization energy, while that in grains with
bigger stress is the decreasing of strain energy.
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Received: 05 November 2004
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