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

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (11): 1698.

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⁵⁷Fe Mssbauer Spectra Study on Eu_0.5 RE_0.5 Fe_0.5Mn_0.5 O₃ Oxides

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

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

Abstract

Abstract: The method of solid state reaction was used to synthesize the samples of Eu_0.5 RE_0.5 Fe_0.5Mn_0.5O₃(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: Eu_0.5 RE_0.5 Fe_0.5 Mn_0.5O_3.57Fe Mossbauer spectra, Quadrupole, Lattice distortion

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LI Li-Ping, Wei Quan, REN Xiao-Lin, ZHENG Da-Feng, SU Wen-Hui. ⁵⁷Fe Mssbauer Spectra Study on Eu_0.5 RE_0.5 Fe_0.5Mn_0.5 O₃ Oxides[J]. Chem. J. Chinese Universities, 1994, 15(11): 1698.

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⁵⁷Fe Mssbauer Spectra Study on Eu_0.5 RE_0.5 Fe_0.5Mn_0.5 O₃ Oxides

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