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| In Situ Raman Spectroscopy Observation for Domain Switching of Ferroelectric Ceramics |
| ZHANG Sa; CHENG Xuan; ZHANG Ying |
| Department of Chemistry; Xiamen University; Xiamen 361005 |
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Cite this article:
ZHANG Sa; CHENG Xuan; ZHANG Ying. In Situ Raman Spectroscopy Observation for Domain Switching of Ferroelectric Ceramics. Acta Metall Sin, 2005, 41(6): 663-668 .
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Abstract In order to develop a nondestructive technique
observing domain switchings in microscopic scale, an in situ
method was proposed based upon the principal of Raman
spectroscopy. Two types of experiments were carried out to verify the
proposed method. One is to measure
the Raman spectra for a fixed grain in the PLZT ferroelectric
sample before and after 90
rotation. The other is to observe variations of Raman spectra for a fixed
grain under a DC field. The results revealed that by a 90 rotation
the Raman
spectra for grains in an in-plane polarized sample vary and the Raman spectra
for grains in both un-poled and out-plane polarized samples remain unchanged.
The results also indicated that the in situ Raman spectrum varies as the
magnitude of the applied DC field increases. These results showed
that the domain switching will leads to variations of Raman spectrum.
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Received: 09 October 2004
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