Tunable magnetic and electrical behaviors in perovskite oxides by oxygen octahedral tilting  

钙钛矿型氧化物中氧八面体扭转对磁学和电学性能的调控（英文）

作　　者：高雅 王建军 伍亮 鲍善永 沈洋 林元华 南策文 

机构地区：[1]School of Materials Science and Engineering, and State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University [2]Department of Materials Science and Engineering, Pennsylvania State University, University Park

出　　处：《Science China Materials》2015年第4期302-312,共11页中国科学（材料科学（英文版）

基　　金：supported by the National Natural Science Foundation of China (51272121, 51221291, and 51328203)

摘　　要：The oxides with perovskite structure possess abundant physical properties, such as magnetism, dielectricity, photoelectricity, ferroelectricity, etc. The oxygen ions in the perovskite unit cell constitute an octahedral distribution. The deformation or tilting of the special oxygen octahedra structure leads to new performances or properties change. Here, we give a review of the relationship between magnetic and electrical behaviors and oxygen octahedral tilting in several typical perovskite oxides. An understanding of how to tune these properties by controlling the tilting during the sample growth can more effectively guide the design of new structures for high performance and inspiring their potential applications.钙钛矿结构氧化物具有极其多样化的物理性能,如磁性、介电性、光电性、铁电性等.钙钛矿晶胞中的氧离子排布成八面体结构.氧八面体的变形或旋转会改变原有的物理特性,甚至产生原本不存在的新性能.本文综述了几种典型钙钛矿氧化物的氧八面体旋转与磁性能和电性能的关系,同时探讨了如何通过样品制备控制微观的八面体旋转,从而更有效的设计具有高性能的新结构,及其潜在应用.

关 键 词：BFO 八面体 多面体 LCMO MFE BNT 

分 类 号：O611.3[理学—无机化学]