Possible reason behind the messy and zigzag data of Impedance Spectroscopy?

I have done Impedance analysis of a pellet with silver pasted electrodes in Hioki3536 LCR meter, but my data is so messy and Zig zag, in nyquist plot. I have make the Pellet again an the data is...

19 March 2024 6,868 2 View