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Proceedings Paper

Bulk crystal growth, thermophysical, and optical properties of lead magnesium niobate-lead titanate (PMN-PT) piezoelectric single crystals
Author(s): M. D. Aggarwal; F. Kochary; A. K. Batra; R. B. Lal; D. Lianos
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Paper 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.

Paper Details

Date Published: 31 August 2005
PDF: 9 pages
Proc. SPIE 5912, Operational Characteristics and Crystal Growth of Nonlinear Optical Materials II, 591205 (31 August 2005); doi: 10.1117/12.617328
Show Author Affiliations
M. D. Aggarwal, Alabama A&M Univ. (United States)
F. Kochary, Alabama A&M Univ. (United States)
A. K. Batra, Alabama A&M Univ. (United States)
R. B. Lal, NASA Marshall Space Flight Ctr. (United States)
D. Lianos, U.S. Army Space and Missile Defense Command (United States)

Published in SPIE Proceedings Vol. 5912:
Operational Characteristics and Crystal Growth of Nonlinear Optical Materials II
Ravindra B. Lal; Donald O. Frazier, Editor(s)

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