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  • 标题:Electrical Properties of BiFeO3 – BaTiO3 Ceramics
  • 本地全文:下载
  • 作者:S. Shankar ; Manish Kumar.
  • 期刊名称:Journal of Pure and Applied Science and Technology
  • 印刷版ISSN:2231-4202
  • 电子版ISSN:2249-9970
  • 出版年度:2014
  • 卷号:4
  • 期号:2
  • 页码:25-30
  • 出版社:Natthan Lal Sevarth Samiti
  • 摘要:

    BiFeO3- BaTiO3 ceramicshave been synthesized via solid state reaction method. The X-ray studies of structural parameters reveal that BiFeO3- BaTiO3 (BFO-BT) solid solutions undergo structural transformations from rhombhohedral to cubic system. The unit cell dimensions increases with higher doping of higher ionic radii dopant (BT). The electrical properties for different composition x=0.10,0.15 and 0.30 in (1-x)BFO-xBT ceramics were studied in the frequency range 1kHz-1MHz at room temperature. It is found that the BFO with higher BT concentrations show higher electrical resistivity as well as capacitance. The decrease in electrical resistance and capacitance has been observed with the increase of frequency of the applied field. The larger dispersion in resistivity is due to dominance of intra-well hopping over inter-well hopping indicating a strong dependence of material properties on BT doping.

  • 关键词:Capacitance. Resistivity. X-ray diffraction. SEM.
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