Hi all, I have a PZT/PT/Pt/Ti/SiO2/Si layer sequence.I need to test the piezoelectric/ferroelectric nature of the film.Is there any method to poll and test the layer without depositing the top electrode? and can anyone suggest how the C-V curves will look like for this since the P-E curves are hard to obtain with a keithley measurement system. And I have a lot of surface cracks on my PZT layer deposited by solgel after annealing (using the F2 mitsubishi precursor solution). If somebody suggests a solution for these problems it will be greatly appreciated. Thanks and regards Rajib