31 August 2005 Bulk crystal growth, thermophysical, and optical properties of lead magnesium niobate-lead titanate (PMN-PT) piezoelectric single crystals
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Abstract
Piezoelectric single crystals of lead magnesium niobate-lead titanate Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) show superior properties as compared to piezoelectric ceramics and piezoelectric films in device applications. However, the applications of PMN-PT single crystals are limited due to the lack of a simple and reproducible fabrication technique. By using the flux method, we have successfully obtained PMN-PT single crystals. The size of the obtained crystals varied from 2 to 5 mm3, mostly showing regular cubic shape. The microstructure and the growth mechanism of the as-grown single crystals are investigated by scanning electron microscopy. From simultaneous differential calorimetry and thermogravimetric analysis (SDT) measurements, we have found that PMN-PT melts at 1264.12°C. The long wave-length optical modes in PMN-PT single crystals have been investigated using Raman scattering measurements.
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M. D. Aggarwal, M. D. Aggarwal, F. Kochary, F. Kochary, A. K. Batra, A. K. Batra, R. B. Lal, R. B. Lal, D. Lianos, D. Lianos, } "Bulk crystal growth, thermophysical, and optical properties of lead magnesium niobate-lead titanate (PMN-PT) piezoelectric single crystals", Proc. SPIE 5912, Operational Characteristics and Crystal Growth of Nonlinear Optical Materials II, 591205 (31 August 2005); doi: 10.1117/12.617328; https://doi.org/10.1117/12.617328
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