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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/27506

Title: Raman scattering investigations of the low-temperature phase transition of NaNbO3
Authors: S. J. Lin;D. P. Chiang;Y. F. Chen;C. H. Peng;H. T. Liu;J. K. Mei;W. S. Tse;T.-R. Tsai;H.-P. Chiang
Contributors: NTOU:Institute of Optoelectronic Sciences
Keywords: crystal growth;lattice vibrational modes;sodium niobate (NaNbO3) ceramics
Date: 2006-12
Issue Date: 2011-10-21T02:32:00Z
Publisher: Journal of Raman Spectroscopy
Abstract: Abstract:In this work, we report the low-temperature phase transition of sodium niobate (NaNbO3) ceramics at the antiferroelectric–ferroelectric phase studied by the Raman scattering technique over the temperature range 10–300 K. The spectral shape indicates that the phase transition occurs at 160 K on the cooling cycle and at 260 K on heating. The recorded spectra are discussed following the separation of modes into the internal stretching modes of the NbO6 octahedron and Na+ cation translational modes. The 62 and 75 cm−1 peaks are proposed as the translational modes of Na+ cation against the NbO6 octahedron.
Relation: 37(12), pp.1442-1446
URI: http://ntour.ntou.edu.tw/handle/987654321/27506
Appears in Collections:[光電科學研究所] 期刊論文

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