Fig. 8

(a): dependence of dielectric constant on frequency, (b): dependence of dielectric loss tangent (δ) on frequency and (c): dependence of ac electrical conductivity (σ) on frequency of BaTiO3, BaTi0.99Mo0.01O3, BaTi0.97Mo0.03O3 and BaTi0.96Mo0.04O3 samples.