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Quantitative analysis of domain texture in polycrystalline barium titanate by polarized Raman microprobe spectroscopy

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3 Author(s)
Sakashita, Tatsuo ; Taiyo Yuden Co. Ltd., 5607-2 Nakamuroda-machi, Takasaki-shi, Gunma 370-3347, Japan ; Chazono, H. ; Pezzotti, Giuseppe

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A quantitative determination of domain distribution in polycrystalline barium titanate (BaTiO3, henceforth BT) ceramics has been pursued with the aid of a microprobe polarized Raman spectrometer. The crystallographic texture and domain orientation distribution of BT ceramics, which switched upon applying stress according to ferroelasticity principles, were determined from the relative intensity of selected phonon modes, taking into consideration a theoretical analysis of the angular dependence of phonon mode intensity for the tetragonal BT phase. Furthermore, the angular dependence of Raman intensity measured in polycrystalline BT depended on the statistical distribution of domain angles in the laser microprobe, which was explicitly taken into account in this work for obtaining a quantitative analysis of domain orientation for in-plane textured BT polycrystalline materials.

Published in:

Journal of Applied Physics  (Volume:102 ,  Issue: 12 )

Date of Publication:

Dec 2007

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