Structural and magnetic properties of NiFe2O4-SnO2 nanocomposite

被引：20

作者：

Albuquerque, AS ^{[1
]}

Ardisson, JD

Macedo, WAA

Plivelic, TS

Torriani, IL

Larrea, JJ

Saitovitch, EB

机构：

[1] Ctr Desenvolvimento Tecnol Nucl, Lab Fis Aplicada, BR-30123970 Belo Horizonte, MG, Brazil

[2] Lab Nacl Luz Sincrotron, BR-13084971 Campinas, SP, Brazil

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

[4] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

ferrites; magnetic properties; nanoparticles; mechanical alloying; Mossbauer spectroscopy; SAXS;

D O I：

10.1016/j.jmmm.2003.12.1270

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural and magnetic properties of the NiFe2O4-SnO2 composite, obtained by ball-milling during different times. were investigated by X-ray diffraction, small-angle X-ray scattering, Mossbauer spectroscopy and vibrating sample magnetometry. The results showed the reduction of the crystalline particle size and modification in the nature of the system interfaces as a consequence of the mechanical treatment. Specimens with smaller particles displayed strong superparamagnetism. Large variation of the hysteresis loops for the different milling times was observed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：2211 / 2213

页数：3

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