Raman Spectroscopic Determination of Pyrochlore-Type Compound on the Synthesis and Decomposition of Sol-Gel-Derived Pb(Mg1/3Nb2/3)O3(PMN)
✍ Scribed by Naoki Wakiya; Jun Shiihara; Kazuo Shinozaki; Nobuyasu Mizutani
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 165 KB
- Volume
- 142
- Category
- Article
- ISSN
- 0022-4596
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✦ Synopsis
Raman spectroscopy was applied to the sol-gel-derived Pb(Mg 1/3 Nb 2/3 )O 3 (PMN) powder and thin film. Pyrochlore-type compound which forms on the synthesis of PMN contains Mg in the formula (Pb 1.86 Mg 0.24 Nb 1.76 O 6.5 ) instead of Pb 1.5 Nb 2 O 6.5 , Pb 2 Nb 2 O 7 , or Pb 2.8 Nb 2 O 7.8 , which have been reported in the literature to form on the synthesis of PMN. It is rather difficult to distinguish these pyrochlore-type compounds by X-ray diffraction since the d-values of these compounds are very close to each other. From the result of Raman spectroscopy, it was also clarified that the pyrochlore-type compound formed by the decomposition of PMN thin film also contains Mg in the formula (Pb 1.86 Mg 0.24 Nb 1.76 O 6.5 ).