所属单位：材料科学与工程学院

发表刊物：Materials Letters

关键字：中文关键字：陶瓷，钙钛矿，铁电，电性能，英文关键字：ceramics；pervoskite；ferroelectric；elecronical prop

摘要：Ferroelectric properties of Bi doped (Ba，Ca，Bi）TiO3 (Bi–BCT) ceramic prepared by the solid-state technique have been studied. An interesting double-like hysteresis (P–E) loop at room temperature (300 K) with the remarkable linear dielectric response was observed over a certain electric field range. Room temperature P–E loops before and after de-aging, as well as those at different values of field cycling, could exclude the possibility that the double P–E loops might result from the antiferroelectric components and the electric field induced paraelectric–ferroelectric (PE–FE) transition near Curie temperature (Tc) in Bi–BCT, and verify that there exists a diffusional aging effect in Bi–BCT. A symmetryconforming short-range ordering (SC-SRO) of point defects is suggested to be responsible for the observations of the interesting double-like P–E loop in Bi–BCT.

备注：云斯宁

合写作者：XiaoliWang,JingShi,JianhuiZhu,DelongXu

第一作者：云斯宁

论文类型：期刊论文

卷号：卷：63

期号：期：21

页面范围：页：1883-1885

是否译文：否

发表时间：2009-08-01