Synthesis of superparamagnetic MgFe2O4 nanoparticles by coprecipitation

被引：209

作者：

Chen, Q

Rondinone, AJ

Chakoumakos, BC

Zhang, ZJ ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA

[2] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 194卷 / 1-3期

关键词：

spinel ferrites; magnetic nanoparticles; superparamagnetic; neutron diffraction; Mossbauer spectroscopy;

D O I：

10.1016/S0304-8853(98)00585-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

MgFe2O4 nanoparticles have been synthesized by coprecipitation method. Magnetic measurements in combination with neutron diffraction have determined the existence of a superparamagnetic state in this metal oxide system. The superparamagnetic relaxation of magnetization in these nanoparticles has been studied by using Mossbauer spectroscopy. The relaxation time has been correlated with the particle size and temperature and is consistent with Neel theory. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 7

页数：7

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