Xj. Li et al., LOW-TEMPERATURE IN-SITU PREPARATION OF FERROELECTRIC PB(ZR0.55TI0.45)O3 THIN-FILMS BY REACTIVE SPUTTERING, Applied physics letters, 63(17), 1993, pp. 2345-2347
Ferroelectric thin films with a composition Pb(Zr0.55Ti0.45)O3 have be
en prepared on Pt-coated Si substrates by a reactive sputtering techni
que at substrate temperatures as low as 250-degrees-C. By means of x-r
ay diffraction, titanium zirconium oxide was identified as one of the
reaction products. Based on this fact, a possible Pb(Zr,Ti)O3 formatio
n mechanism has been proposed. X-ray diffraction patterns of these fil
ms show nearly no pyrochlore phase. Ferroelectric hysteresis loops sho
w a remanent polarization of 25.6 muC/cm2 and a coercive field of 17.1
kV/cm.