As many researchers already know, using linear approximation to electrochemical samples is a risky endeavour.
Here is yet another example.
The work of dr. A. Olejnik and professor K. Grochowska recently published here use higher harmonics delivered by our IMPS/IMVSs to probe inner workings of non-linear samples.
Here is a video presentation of the subject during the conference “Non-linear Phenomena in Electrochemistry and Photovoltaics”
https://www.youtube.com/watch?v=1N9_8BYqkbs
