Electrical Characteristics and Microstructures of Eu2O3-Doped Bi4Ti3O12 Ceramics

摘要：

The electrical properties of Eu-doped bismuth titanate, Bi4-xEuxTi3O12 (BET) ceramics prepared by a conventional electroceramic technique were investigated. XRD analyses revealed Bi-layered perovskite structure in all samples. SEM micrographs showed randomly oriented and plate-like morphology. For the samples with x=0.4 and 1.0 the current-voltage characteristics exhibited negative differential resistance behaviors and their P-V hysteresis loops were characterized by large leakage current, whereas for the samples with x=0.6 and 0.8 the current-voltage characteristics showed simple ohmic behaviors and their P-E hysteresis loops were the saturated and undistorted hysteresis loops. The remanent polarization (Pr) and coercive field (Ec) of the BST ceramic with x=0.8 were above 16μC/cm2 and 70KV/cm, respectively.

作者: M.Chen X.A.Mei J.G.Liu J.Liu C.Q.Huang

作者单位: School of Physics, Hunan Institute of Science and Technology, Yueyang, 414000, China

会议类型: 国际会议

会议名称: The Second Annual Meeting on Testing and Evaluation of Inorganic Mateirals(第二届全国无机材料测试与评价学术年会 TEIM-2)

会议地点: 长沙

会议语种:英文

页码: 210-213

在线出版日期: 2011-06-30（万方平台首次上网日期，不代表论文的发表时间）