Structure and Properties of Nanocrystalline Iron Oxide Powder Prepared by the Method of Pulsed Laser Ablation

被引：0

作者：

V. A. Svetlichnyi

A. V. Shabalina

I. N. Lapin

机构：

[1] National Research Tomsk State University,

来源：

Russian Physics Journal | 2017年 / 59卷

关键词：

pulsed laser ablation; magnetic nanoparticles; iron oxide Fe; O; magnetite;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Colloidal solution of iron oxide nanoparticles is synthesized by nanosecond pulsed laser ablation (Nd:YAG laser, 1064 nm, 7 ns, and 180 mJ) of a metallic iron target in water, and nanocrystalline powder is prepared from this solution by vacuum drying. A composition and structure of the material obtained are investigated by methods of electron microscopy, x-ray diffraction, and optical spectroscopy. It is established that oxide particles with average size of about 5 nm and Fe3O4 magnetite structure are mainly formed during ablation. Preliminary investigation of magnetic properties of the prepared nanoparticle powders shows that they can be in ferromagnetic and/or superparamagnetic states.

引用

页码：2012 / 2016

页数：4

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