Abstract
The measurements of switching time in Rb2ZnCl4 type crystals show that the sideways motion of the discommensurations is a dominant mechanism in the polarization reversal process.
The measurement of the dielectric constant within the commensurate phase as a function of the bias electric field enables a direct observation of the interaction potential between discommensurations. These results indicate that the exponential interaction changes to an oscillatoric one at T ∼ 150 K.