The frequency dependent electrical parameters, such as impedance, electric modulus, dielectric constant and AC conductivity for ferroelectric Ba 0.8 Sr 0.2 TiO 3 thin film have been investigated within the range of 1 Hz and 10 6 Hz at room temperature. Z* plane shows two regions corresponding to the bulk mechanism and the distribution of the grain boundaries-electrodes process. M" versus frequency plot reveals a relaxation peak, which is not observed in the ε″ plot and it has been found that

more »

... s peak is a non-Debye-type. The frequency dependent conductivity plot shows three regions of conduction processes, i. e., a low-frequency region due to DC conduction, a mid-frequency region due to translational hopping motions and a high-frequency region due to localized hopping and/or reorientational motion. (A. A. Saif) measurements were performed using an impedance/gainphase analyzer in the frequency range of 1 Hz to 1 MHz at room temperature. EXPERIMENT