SYNTHESIS OF STRONTIUM BARIUM NIOBATE THIN-FILMS THROUGH METAL ALKOXIDE

Highly oriented Sr0.5Ba0.5Nb2O6 (SBN50) thin films have been prepared using a sol-gel method, A homogeneous and stable strontium barium niob ate (Sr1-xBaxNb2O6, SBN) precursor solution could be prepared via the reaction control of metal alkoxides. The SBN precursor mas stabilized by the coordination of the 2-ethoxyethoxy group to metals. SBN thin fi lms on MgO(100) crystallized to a mixture of orthorhombic and tetragon al phase at 700 degrees C and then transformed completely to the tetra gonal phase of tungsten bronze at 1000 degrees C, Two crystal lattice planes of SBN were intergrown at an orientation of 18.5 degrees on MgO (100), SBN50 thin films on Pt(100)/MgO(100) substrates exhibited the P -E hysteresis.