LANTHANUM DOPED LEAD-ZIRCONATE-TITANATE STANNATE ANTIFERROELECTRIC THIN-FILMS FROM ACETIC ACID-BASED SOL-GEL METHOD

Lanthanum doped lead zirconate titanate stannate antiferroelectric thi n films with 'square' hysteresis loops and zero remanent polarization were prepared, for the first time, from acetic acid-based sol-gel proc essing. The method has the advantages of simple procedure in solution preparation, less sensitivity to moisture and the potential to make th ick films. The thin films obtained have very distinctive phase transit ion field, and the saturated polarization value of 37 mu C/cm(2), whic h are suitable for high-energy-storage or decoupling capacitor applica tions in advanced multichip modules, as well as microactuation applica tions. (C) 1998 Elsevier Science B.V.