Ferroelectric Sr 0.6 Ba 0.4 Nb 2 O 6 (SBN) films were fabricated on various substrates such as Si, Pt-coated Si, and MgO by pulsed laser deposition. The effect of deposition condition, substrate, (La 0.5 Sr 0.5 )CoO 3 buffer layer on the structure and morphology of SBN films were investigated systematically by x-ray diffraction and scanning electron microscopy. The optimal processing has been obtained. The transverse electro-optic properties of SBN on MgO and fused quartz were also evaluated. The larger effective EO coefficient was observed on fused quartz. The possible explanation has been proposed.
Acknowledgment
This work was supported by Program for New Century Excellent Talents in University (NCET-04-0451) of the Education Ministry, National Natural Science Foundation of China (90101030 and 60276020) and a grant for State Key Program for Basic Research of China.
Paper originally presented at AMF-4, Bangalore, India, December 12–15, 2003; received in final form April 10, 2005. The original Proceedings of the Fourth Asian Meeting on Ferroelectricity (AMF-4) are published in seven earlier volumes of FERROELECTRICS (Volumes 323–329, inclusive).