Dielectric properties of barium stannate titanate ceramics under bias field

The biased dielectric properties of several barium stannate titanate ceramics were reported in the present study. The reversible dielectric nonlinearities (RDNs) were investigated both in ferroelectric and paraelectric phases. The increased lateral dielectric constant was illustrated with the anisotropy model in ferroelectric phase. The field dependence of dielectric constant was analysed by thermodynamic models in paraelectric phase.