Abstract
The study provides frequency spectra of several electrophysical parameters of dielectric permittivity, dielectric loss tangent, conductivity, electrical impedance and electric modulus to explore the frequency response at low and infralow frequencies (10−2–106 Hz) for the ferroelectric composite synthesized from cellulose nanoparticles and Rochelle salt. The experimental results confirmed the main contribution of conductivity into the frequency response with the presence of two relaxation processes. The first one was related to the intrinsic relaxation inside the composite while the second one was caused by the influence of electrode effects. Besides, the significant dispersion of dielectric permittivity obeying Maxwell-Wagner-Sillars mechanism has also been detected.
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