Effect of the Zn content in the structural and magnetic properties of ZnxMg1-xFe2O4 mixed ferrites monitored by Raman and Mossbauer spectroscopies

被引：42

作者：

da Silva, S. W. ^{[1
]}

Nakagomi, F. ^{[1
]}

Silva, M. S. ^{[2
]}

Franco, A., Jr. ^{[2
]}

Garg, V. K. ^{[1
]}

Oliveira, A. C. ^{[1
]}

Morais, P. C. ^{[1
]}

机构：

[1] Univ Brasilia, Inst Fis, Nucleo Fis Aplicada, BR-70910900 Brasilia, DF, Brazil

[2] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, GO, Brazil

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 09期

关键词：

CATION DISTRIBUTION; NANOPARTICLES;

D O I：

10.1063/1.3350903

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Samples of ZnxMg(1-x)Fe(2)O(4) (0 <= x <= 1) synthesized by the combustion reaction method were investigated by x-ray diffraction, Mossbauer spectroscopy, and Raman spectroscopy. All the samples are found to have a cubic spinel structure and the lattice parameter increases linearly with increasing Zn-content (x). The Mssbauer data showed that the replacement of Mg2+ ions for Zn2+ ions changes substantially the hyperfine parameter. Moreover, it was verified the presence of Fe3+ ions both in A and B sites. The Raman spectra showed five predicted Raman bands for the spinel structure and it was observed the splitting of the A(1g) Raman mode into tree branches, where each one have been attributed to peaks belonging to each ion (Zn, Mg, and Fe) in the tetrahedral positions. (C) 2010 American Institute of Physics. [doi:10.1063/1.3350903]

引用

页数：3