Laser synthesis of magnetic iron oxide nanopowders

被引：41
|
作者：
Osipov, V. V. [1 ]
Platonov, V. V. [1 ]
Uimin, M. A. [1 ]
Podkin, A. V. [1 ]
机构：
[1] Russian Acad Sci, Inst Electrophys, Ural Branch, Ekaterinburg 620016, Russia
来源：
TECHNICAL PHYSICS | 2012年 / 57卷 / 04期
关键词：
EVAPORATION; NANOPARTICLES;
D O I：
10.1134/S1063784212040214
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic iron oxide nanopowders are synthesized by the laser ablation of a target made of a coarse Fe2O3 powder. The geometric characteristics of the nanopowders and their yield are studied over a wide air pressure range ((1-34) x 10(4) Pa) in an evaporation chamber. The phase compositions of the nanopowders and the conditions under which their chemical composition is closest to magnetite Fe3O4 are determined. The specific saturation magnetization and the coercive force of some iron oxide nanoparticles are measured.
引用
收藏
页码：543 / 549
页数：7
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