高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (2): 275.

• 论文 • 上一篇    下一篇

Ca掺杂对EuFeO3的Fe离子的电子态的影响

李莉萍1, 林晓敏4, 魏诠2, 任孝林3, 苏文辉1   

  1. 1. 吉林大学物理系, 长春, 130023;
    2. 吉林大学测试中心, 长春, 130023;
    3. 吉林大学化学系, 长春, 130023;
    4. 吉林师范学院理学院, 吉林, 132011
  • 收稿日期:1996-11-28 出版日期:1998-02-24 发布日期:1998-02-24
  • 通讯作者: 李莉萍,联系人:女,34岁,博士,副教授.
  • 作者简介:李莉萍,女,34岁,博士,副教授.
  • 基金资助:

    国家自然科学基金资助课题.

The Influence of Doping Ca in EuFeO3 on Electronic State of Fe Ion

LI Li-Ping1, LIN Xiao-Min4, WEI Quan2, REN Xiao-Lin3, SU Wen-Hui1   

  1. 1. Department of Physics, Jilin University, Changchun, 130023;
    2. Center for Analysis and Measurement, Jilin University, Changchun, 130023;
    3. Department of Chemistry, Jilin University, Changchun, 130023;
    4. Jilin Teachers College, Jilin, 132011
  • Received:1996-11-28 Online:1998-02-24 Published:1998-02-24

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摘要： 利用固相反应合成了Eu1-xCaxFeO3钙钛矿氧化物.XRD测量表明,在x≤0.6范围内为钙钛矿结构;室温下的57FeMössbauer谱测试给出3个磁谱和1个顺磁双线谱;在3个磁谱中,1个为处于四配位的Fe离子,另外2个为处于八配位的Fe离子.XPS谱表明Fe2p3/2的高结合能端出现与Fe离子配位状态相对应的肩峰.所有Fe离子都处于+3价态.

关键词: Eu1-xCaxFeO3, XPS, 57Fe Mö, ssbauer谱

Abstract: Samples of Fe1-xCax FeO3( x =0.0, 0.2～1.0) were prepared by solid state reaction method. XRD measurements show that compounds for x <0.6 have a perovskite structure. Three magnetic and one doublet species were observed at room temperature in the Mössbauer spectra. One of the three magnetic components corresponds to Fe ions in tetrahedral coordination, and the other to Fe ions in octahedral coordination. The shoulder peak of Fe2p3/2 for the samples with x =0 Orelated to Fe ions in different coordinated state. The Fe ions are all in a trivalent state.

Key words: Fe1-xCax FeO3, XPS, 57 Fe Mö, ssbauer spectrum

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