楚上杰,张铭,邓浩亮,魏纪周,王昭辉,严辉.3d过渡金属掺杂对Bi0.8Ba0.2FeO3陶瓷多铁性能的影响研究[J].稀有金属材料与工程,2018,47(1):197~200.[Chu Shangjie,Zhang Ming,Deng Haoliang,Wei Jizhou,Wang Zhaohui,Yan Hui.Research on the effect of multiferroic properties of 3 d transition metaldoping in Bi0.8Ba0.2FeO3 ceramics[J].Rare Metal Materials and Engineering,2018,47(1):197~200.]
3d过渡金属掺杂对Bi0.8Ba0.2FeO3陶瓷多铁性能的影响研究
投稿时间:2015-11-16  修订日期:2015-12-30
中文关键词:  多铁性  磁电耦合  BiFeO3
基金项目:国家自然科学基金(11174021)和北京市自然科学基金(2122007)
中文摘要:
      采用传统固相烧结法制备多铁性Bi0.8Ba0.2Fe0.9M0.1O3(M = Cr、Mn和Ti)陶瓷。X射线衍射图谱(XRD)表明该材料为纯相菱形钙钛矿结构,属于R3c空间点群。铁电测试结果表明,Bi0.8Ba0.2Fe0.9Ti0.1O3陶瓷具有室温下的最大剩余极化值(2Pr)为0.64 μC/cm2和低频时的最小介电常数值(ε)为140。同时,所有样品的介电常数和介电损耗均随着频率的增加而降低且在高频时趋于稳定。磁性测试结果表明,Bi0.8Ba0.2Fe0.9Mn0.1O3陶瓷具有室温下的最大剩余磁化值(2Mr)为1.46emu/g。显著的磁极化前后P-E回线变化被观察到,这直接说明了多铁性Bi0.8Ba0.2Fe0.9M0.1O3(M = Cr、Mn和Ti)陶瓷中存在磁电耦合效应,且Bi0.8Ba0.2Fe0.9Cr0.1O3样品具有最显著的磁电耦合效应值为5.8 mJ/cm3
Research on the effect of multiferroic properties of 3 d transition metaldoping in Bi0.8Ba0.2FeO3 ceramics
英文关键词:Multiferroic  magnetoelectric coupling  BiFeO3
英文摘要:
      Muitiferroic ceramics Bi0.8Ba0.2Fe0.9M0.1O3(M = Cr、Mn and Ti) were prepared by using conventional solid state reaction method. The pure phase with rhombohedral perovskite structure (space group R3c) was confimd by the X-ray diffraction measurements for all samples. The maximum value of the remnant polarization (2Pr) and the minimum value of the dielectric constant at room temperature and low frequencyare for Bi0.8Ba0.2Fe0.9Ti0.1O3samples are 0.64 μC/cm2 and 140, respectively. The dielelctric constant and dielelctric loss decrease with increasing frequency and then become nearly constant at higher frequency for all samples. The maximum value of the remnant magnetization (2Mr) for Bi0.8Ba0.2Fe0.9Mn0.1O3samples at room temperature is 1.46emu/g by the M-H loops measurements. A remarkable change in the P-E loops were observed whether a bias dc magnetic field was applied or not, approving the existence of the magnetoelectric coupling indirectly therein in multiferroic ceramics Bi0.8Ba0.2Fe0.9M0.1O3(M = Cr、Mn and Ti). And the maximum value of magnetoleectric coupling for Bi0.8Ba0.2Fe0.9Cr0.1O3samples is 5.8 mJ/cm3.
作者单位E-mail
楚上杰 北京工业大学 材料科学与工程学院 chushangjie@emails.bjut.edu.cn 
张铭 北京工业大学 材料科学与工程学院 mzhang@bjut.edu.cn 
邓浩亮 北京工业大学 材料科学与工程学院  
魏纪周 北京工业大学 材料科学与工程学院  
王昭辉 北京工业大学 材料科学与工程学院  
严辉 北京工业大学 材料科学与工程学院  
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