PREPARATION OF FERIII OXIDE-BASED THIN FILMS FOR OPTICAL AND / OR MAGNETIC RECORDING

摘要

The present invention relates to a process for the preparation of thin layers based on iron oxide. It consists in applying to a support a polymer composition of iron oxide prepared by controlled hydrolysis of an iron alkoxide solution. The hydrolysis is controlled by using a quantity of water such that the molar ratio R water / alkoxide is between 3 and 15, or between 60 and 80. / P P The invention applies to the preparation thin layers for optical and / or magnetic recording. / P