Dispersion of the dielectric susceptibility of rochelle salt nanocrystals

The specific features of the frequency dependences of the real and imaginary components of the dielectric susceptibility of nanocrystalline ferroelectrics of the order-disorder type are considered. These features are due to the presence of significant internal stresses in these materials, arising during their preparation, and the dependence of the anisotropy constants on the sizes of nanograins and their crystallographic symmetry.