Thin ferroelectric films of BaTiO3, LiNbO3, and Pb(Zr0.53Ti0.45W0.01Cd0.01)
O-3 have been grown on different substrates. Processing conditions for the
thin film preparation by RF sputtering were optimised to assure the composi
tion transfer between the target and the thin film. Structure of the films
was investigated by X-ray diffraction. The basic dielectric and piezoelectr
ic properties were studied and the processing-structure perfection-property
relationships of oxide thin films have been revealed. The piezoelectric ch
arge coefficient d(33) was determined. Self-induced polarisation. of the th
in films as well as stress-induced polarisation ascribed to reversible disp
lacement of 90 degrees domain walls was taken into account to explain exper
imental results. (C) 2001 Elsevier Science Ltd. All rights reserved.