O. Auciello et al., SCANNING FORCE MICROSCOPY STUDY OF DOMAIN-STRUCTURE IN PB(ZRXTI1-X)O-3 THIN-FILMS AND PT PZT/PT AND RUO2/PZT/RUO2 CAPACITORS/, Integrated ferroelectrics, 15(1-4), 1997, pp. 107-114
A piezoresponse technique based on scanning force microscopy has been
used for studying domain structure in ferroelectric thin films. Studie
s were performed on Pb(Zr-x,Ti1-x)O-3 (PZT) thin films and PZT-based c
apacitors with the ferroelectric layer produced by a sol-gel method. P
iezoresponse images were taken for different systems materials: (a) be
fore and after inducing polarization in PZT films by applying a dc vol
tage between the bottom electrode and the SFM tip, and (b) on top elec
trodes of fatigued and non-fatigued Pt/PZT/Pt and RuO2/PZT/RuO2 capaci
tors. Effect of the PZT film and capacitor structures on the imaging r
esolution of domains is discussed.