Patent ID: 8859051

Claim:
A composition for the formation of a ferroelectric thin film which is used in the formation of a ferroelectric thin film of one material selected from the group consisting of PLZT, PZT, and PT, wherein the composition is a liquid composition for the formation of a thin film of a mixed composite metal oxide formed of a mixture of a composite metal oxide A represented by the general formula (1): (Pb x La y )(Zr z Ti( 1-z )O 3 [In the formula (1), 0.9<x<1.3, 0≦y<0.1, and 0<z<0.9] with a composite oxide B including Si, the composition comprising an organometallic compound solution wherein a raw material of the composite metal oxide A and a raw material of the composite oxide B are dissolved in an organic solvent in such a proportion as to provide the metal atom ratio represented by the general formula (1), wherein the composite oxide B includes one or more selected from the group consisting of silicon 2-ethyl hexanoate, silicon 2-ethyl butyrate, and tetrakis (acetylacetonate) silicon, and wherein the molar ratio B/A of the composite oxide B to the composite metal oxide A is in the range of 0.005≦B/A<0.1.