Probing of 1:2 Ordering in Ba(Ni1/3Nb2/3)O3 and Ba(Zn1/3Nb2/3)O3 Ceramics by XRD and Raman Spectroscopy |
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| Authors: | Byung-Kook Kim†‡§ Hiro-o Hamaguchi‡¶ In-Tae Kim†† Kug Sun Hong† |
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| Affiliation: | Department of Inorganic Materials Engineering, Seoul National University, Seoul 151-742, Korea. Molecular Spectroscopy Laboratory, Kanagawa Academy of Science and Technology, Kawasaki 213, Japan. Division of Ceramics, Korea Institute of Science and Technology, Seoul 130-650, Korea |
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| Abstract: | The 1:2 ordering in Ba(Ni1/3Nb2/3)O ceramics sintered at 1350-1500°C has been investigated by using XRD and Raman spectroscopy. Both of the techniques show that the degree of the 1:2 ordering decreases as the sintering temperature increases. However, XRD discerns the 1:2 ordering only for the samples sintered at 1350-1400°C, whereas Raman spectroscopy discerns the 1:2 ordering for all the samples. Similar results have been obtained for Ba(Zn1/3Nb2/3)O3 ceramics, where only the temperature range is slightly different. It is demonstrated that Raman spectroscopy can be a useful tool for probing of the 1:2 ordering in the A(B'II1/3B"V2/3)O3-type complex perovskite compounds. |
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