Abstract
A new technique is proposed for preparing lead titanate ferroelectric films. The technique involves a solid-phase reaction in an oxygen environment between titanium and lead layers deposited on a substrate. The thicknesses of the component films being deposited are chosen based on the stoichiometric ratio in the compound to be synthesized. The composition and structure of the film obtained are checked by x-ray phase analysis. The films exhibit a dielectric hysteresis loop and a temperature dependence of the permittivity characteristic of ferroelectrics. A study has been made of the temperature and thickness dependences of the film coercive field. They also are shown to follow a pattern typical of ferroelectrics.
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