STRUCTURE AND PROPERTIES OF PLT(28) THIN-FILMS WITH NANO-GRAIN

Pb0.72La0.28TiO3 thin films with nano grains were grown on glass subst rates by RF magnetron sputtering using in-situ or post-annealing proce ss. XRD, TEM and XPS were used to examine the morphology and microstru cture. Ferroelectric and electro-optic effect of the films have been s tudied. The results showed that the structure and properties of the fi lms are strongly related to the technological process. In the case of films prepared at low temperature, the pyrochlor can be completely tra nsformed to perovskite through heating annealing treatment. The nano g rain films exhibit the slim hysteresis and Kerr-effect.