Hydrogen-bonded polar chains with bistable configurations exhibit cooperative proton tautomerism and polarity switching when an electric field is applied, as observed by well-defined polarization hysteresis at room temperature. This principle can guarantee the ferroelectricity of strong polarization at low voltage and high temperature in a wide class of molecular materials and should be applied to polymeric and biomolecular systems.
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Horiuchi et al. (2011) studied this question.
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