高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (11): 1698.

• 论文 • 上一篇    下一篇

Eu0.5RE0.5Fe0.5Mn0.5O3的57Fe Msosbauer谱研究

李莉萍, 魏诠, 任孝林, 郑大方, 苏文辉   

  1. 吉林大学物理系, 、化学系、分析侧试中心, 长春, 130023
  • 收稿日期:1993-01-31 修回日期:1994-08-23 出版日期:1994-11-24 发布日期:1994-11-24
  • 通讯作者: 魏论.
  • 作者简介:李莉萍,女,31岁,硕士,讲师.
  • 基金资助:

    国家自然科学基金

57Fe Mssbauer Spectra Study on Eu0.5 RE0.5 Fe0.5Mn0.5 O3 Oxides

LI Li-Ping, Wei Quan, REN Xiao-Lin, ZHENG Da-Feng, SU Wen-Hui   

  1. Phys. Dept., Chem.Dept., Anal. Measuremem Center, Jilin University, Changchun, 130023
  • Received:1993-01-31 Revised:1994-08-23 Online:1994-11-24 Published:1994-11-24

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摘要： 利用固相反应合成了Eu0.5RE0.5Fe0.5Mn0.5O3(RE=La,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Y)等化合物。测量了其XRD谱及57FeMssbauer谱。实验发现,随着RE原子序数的增加,样品的晶胞体积减小,Fe在化合物中处于Fe3+的高自旋状态,57Fe的四极裂矩与样品的畸变参数D成线性关系。

关键词: Eu0.5RE0.5Fe0.5Mn0.5O3, 57FeMssbauer谱, 四极裂矩, 晶格畸变

Abstract: The method of solid state reaction was used to synthesize the samples of Eu0.5 RE0.5 Fe0.5Mn0.5O3(RE=La, Pr, Nd, Sm, Eu, Gd, Tb.Dy, Ho, Er, Tm, Yb, Y).XRDand 57Fe Mossbauer spectra were measured It is found that the volumes of unit cell of the samples increase with increasing atomic number of RE; Fe3+ ions are in a high spin state, and the relationship between the quadruple splittings and lattice distortion parameter Dof the samples is linear.

Key words: Eu0.5 RE0.5 Fe0.5 Mn0.5O3.57Fe Mossbauer spectra, Quadrupole, Lattice distortion

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