| Abstract
| - Short-range ferroelectric order is postulated to explain unusual one-dimensional dielectric response inferroelectric 1,4-diazabicyclo[2.2.2]octane. In this pure organic salt, the polar regions are created in theantiferroelectric matrix of hydrogen-bonded polycationic chains due to the random proton transfers in NH+···Nhydrogen bonds. This results in a local spontaneous polarization along the nonferroelectric direction of thecrystal, inconsistently with its macroscopic symmetry. The phenomenon arising from a self-discrimination ofthe crystal ionic structure strongly resembles the behavior of ferroelectric relaxors induced by an artificialcompositional disorder.
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