What is it about?
Ferroelectricity is caused by proton transfer, resulting in a superstructure.
Why is it important?
The distortions of the structure at low temperatures follows a single normal mode which can explain the direction of the polarisation close to the monoclinic axis, even though the symmetry is reduced to triclinic.
Read the Original
This page is a summary of: Ferroelectricity of Phenazine–Chloranilic Acid at $$T = 100$$ T = 100 K, Journal of Chemical Crystallography, July 2014, Springer Science + Business Media, DOI: 10.1007/s10870-014-0527-1.
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