Field-induced ferroelectricity in paraelectric phase of Barium strontium titanate

Abstract

The nonlinear polarization and ferroelectricity in the paraelectric region of Ba0.7Sr0.3TiO3 ceramic samples are investigated. For this, samples are poled at a finite field and field-induced phase is analyzed through XRD, SEM, dielectric, impedance, and Piezo force microscopy high-frequency studies before and after poling. The Rayleigh-like dynamics is inspected along with the switching behavior in to samples. Our study suggests field-induced ferroelectricity in Ba0.7Sr0.3TiO3 due to polar distortion. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.