Structure and dielectric properties of (Sr1-1.5xBix)TiO3 thin films

Bismuth doped SrTiO3 material has shown very interesting phenomena. Dielectric and ferroelectric relaxations have been recently reported in bismuth doped SrTiO3 ceramics in the lower temperature range [1]. Moreover, several dielectric anomalies with temperature ranges were observed [2]. The anomalies phenomena may be contributed by the formation of several kinds of polar clusters after introducing bismuth in SrTiO3. Bi-doped SrTiO3 is emerging as a promising material for microwave tunable devices [3].