Far-infrared optical transmission through asymmetrical ferroelectric films

Abstract

Investigation of far-infrared (FIR) spectroscopy for symmetrical ferroelectric (FE) films are discussed theoretically based on the basis of the Tilley-Zeks (TZ) model using Landau free energy expansion, Landau- Khalatnikov (LK) equation of motion, and electromagnetic wave equation for the second [1] and first order [2, 3] respectively. Here by using the same model we scrutinized a preliminary result of non-surface effect of FIR spectra behaviour for asymmetrical FE films in both phase transitions incorporating with the effect of refractive index.