The effects of a non-ferroelectric slab on the polarization and the susceptibility of a ferroelectric multilayer

Abstract

The polarization and the susceptibility of a ferroelectric multilayer with a nonferroelectric slab are investigated within the framework of transverse Ising model with a four-spin interaction term. The effect of the thickness and the position of the non-ferroelectric slab are investigated in this paper. We find that the increase of the thickness of the non-ferroelectric will decrease the polarization and the susceptibility of the film. If the position of the non-ferroelcetric slab shifts from the center of the film to the surface, the number of the peaks of the susceptibility will change. And a step-like polarization curve is found.

Effects of Interfacial Pseudo-Spin Coupling Fluctuations on the Dielectric Properties of Ferroelectric Superlattices

“…In Refs. [8,9], the effects of long-range interactions and a non-ferroelectric layer on the dielectric properties of ferroelectric multilayer were studied. Defects zones and the mismatch at the interface between successive ferroelectric layers were observed in Ref.…”