Properties of magnetite nanoparticles synthesized through a novel chemical route

被引：158

作者：

Thapa, D ^{[1
]}

Palkar, VR ^{[1
]}

Kurup, MB ^{[1
]}

Malik, SK ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 21期

关键词：

magnetic materials; nanomaterials;

D O I：

10.1016/j.matlet.2004.03.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have developed a simple precipitation route to synthesize magnetite (Fe3O4) nanoparticles with controlled size without any requirement of calcination step at high temperatures. The study of these nanoparticles indicates an enhancement in saturation magnetization with reduction in size down to similar to 10 nm beyond which the magnetization reduces. The latter is attributed to surface effects becoming predominant as surface to core volume ratio increases. From the view-point of applications, 10 nm size of magnetite particles seems to be the optimum. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：2692 / 2694

页数：3

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