Preparation of Epitaxial KTN Thin Films by Sol-Gel Process

1 Introduction The Sol-Gel process has received a great deal of attention, primarily because it can offer many advantages over the conventional process, such as high purity, molecular-level homogeneity, easier composition control and reduced processing temperature. These advantages make Sol-Gel process become one of the promising fabrication methods for ferroelectric ceramics. Sol-Gel-derived thin films of BaTiO3, PbTiO3, Pb （Zr, Ti）O3, PLZT and others have all been reported, but there is little information relating to the potential