Dielectric properties and phase transition mechanisms in Sr1−xBaxTiO3 solid solution at low doping concentration

Dielectric properties of Sr1−xBaxTiO3 (x ≦ 0.30) solid solution were studied by means of dielectric constant, DE loop, pyroelectricity measurements, and so on. A quantum paraelectric to quantum ferroelectric transition was observed for samples with a small amount of Ba content ( 0.005 ≦ x ≦ 0.10). Possible phase transition mechanisms are discussed.