PbTiO/sub 3/ films from metalloorganic precursors

Ferroelectric PbTiO/sub 3/ films 0.5- to 2.0- mu m thick were prepared by the metalloorganic decomposition (MOD) process using multilayer spinning with firing temperatures of 490-630 degrees C. The temperature dependence of the dielectric constant was found to be a function of the c/a ratio, which could be modified by control of either the single-layer thickness or the strength of the electric field during film preparation near the Curie temperature. The films were near theoretical density and defect-free over 2 cm*2 cm areas.<
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