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Structure and Properties of Mg-doped SrBi4Ti4O15 Bi-layered Compounds |
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| Authors: | HAO Huan LIU Hanxing CAO Minghe OUYANG Shixi |
| Affiliation: | [1]School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China [2]State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China |
| Abstract: | The structure and properties of Mg-doped SrBi4Ti4O15(SBT) were dicussed. Mg substitution into SBT had two possibilities states with the dopant amount variety. Mg cation substituted mostly into Sr2 and the amount proportion was 68.11%.Mg ion will substitute into Ti ion site in perovskite layer when the doping amount increases. Polarization increases sharply when x=0.1 and then decreases becauses of the domain pinning. The Curie temperature of Mg-doped SBT is about 300 ℃ and there is a broad diffuse phase transition near Tc with a flat peak near the Ta of SBT. |
| Keywords: | Mg-doped bismuth layer structure ferroelectrics ferroeleetric properties |
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