Magnetic properties of NiFe2O4 nanoparticles produced by a new chemical method

被引：53

作者：

Duque, J. G. S.

Souza, E. A.

Meneses, C. T.

Kubota, L.

机构：

[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

[2] Ctr Ciencias Exatas Campus Pici, UFC, Dep Fis, BR-60455900 Fortaleza, Ceara, Brazil

[3] Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP, Brazil

来源：

PHYSICA B-CONDENSED MATTER | 2007年 / 398卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

NiFe2O4; chemical synthesis; sucrose; BARIUM FERRITE; NANOCRYSTALLINE NICKEL; HYDROTHERMAL METHOD; POWDERS; HEXAFERRITE; ZINC; GAMMA-FE2O3; COMBUSTION; PARTICLES; BAFE12O19;

D O I：

10.1016/j.physb.2007.04.030

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have investigated the magnetic properties of nickel ferrite (NiFe2O4) nanoparticles obtained through a new chemical route. X-ray diffraction (XRD) confirms that the spinel phase is already formed at 300 degrees C. Magnetization measurements, M(T, H), have been done in order to compare the results with that found in the literature. As one can see the magnetic moment is not saturated for fields up to 20 kOe and an irreversible behavior of the high field ZFC-FC moment is also found. The effective magnetic moment per molecule evaluated from hysteresis loops at a magnetic field of 20 kOe is smaller than 2 mu(B)/molecule. ((C) 2007 Elsevier B.V. All rights reserved.

引用

页码：287 / 290

页数：4

共 27 条

[1] PREPARATION OF BARIUM HEXAFERRITE BY A HYDROTHERMAL METHOD - STRUCTURE AND MAGNETIC-PROPERTIES [J].