Rietveld structure refinement of the cation distribution in ferrite fine particles studied by X-ray powder diffraction

被引：66

作者：

Gomes, JA

Sousa, MH

Tourinho, FA

Mestnik, J

Itri, R

Depeyrot, J

机构：

[1] Univ Brasilia, Inst Fis, Complex Fluids Grp, BR-70919970 Brasilia, DF, Brazil

[2] Univ Brasilia, Inst Quim, Complex Fluids Grp, BR-70919970 Brasilia, DF, Brazil

[3] IPEN, BR-05422970 Sao Paulo, Brazil

[4] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 289卷

关键词：

cation distribution; Rietveld refinement; ferrites; magnetic nanoparticles;

D O I：

10.1016/j.jmmm.2004.11.053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Samples of ZnFe2O4 and CuFe2O4 fine particles prepared by coprecipitation method have been studied by X-ray powder diffraction at room temperature. The oxygen position, the lattice parameter, the mean size of the nanoparticles and the cation distribution have been determined by means of Rietveld analysis, indicating the existence of mixed ferrites in both samples. These results are also evidenced through magnetic measurements in ferrofluid samples at room temperature. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：184 / 187

页数：4

共 12 条

[1]

ALVES CR, 2004, J METASTABLE NANOCRY, V21, P693

[2] MAGNETIC COLLOIDAL PROPERTIES OF IONIC FERROFLUIDS [J].