Magnetic properties and morphology of Ni nanoparticles synthesized in gas phase

被引：25

作者：

Maicas, M. ^{[1
]}

Sanz, M. ^{[1
]}

Cui, H. ^{[2
]}

Aroca, C. ^{[1
]}

Sanchez, P. ^{[1
]}

机构：

[1] Univ Politecn Madrid, Inst Syst Based Optoelect & Microtechnol ISOM, E-28040 Madrid, Spain

[2] Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2010年 / 322卷 / 21期

关键词：

Magnetic nanoparticle; Gas-aggregation source; Magnetron sputtering; Specific magnetic moment; Nickel; SEPARATION;

D O I：

10.1016/j.jmmm.2010.06.050

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the size, structure and magnetic properties of Ni nanoparticles fabricated with a free-jet sputtering nanoparticle source. It is found how the pressure of the inert gas and the diameter of the source nozzle can control the particle size and coercivity in a wide range. Measurements of the specific magnetic moment of Ni nanoparticles are reported. A particular growing regime is found at high pressures over 1.8 mbar observing a further aggregation process that leads to nanoparticle agglomerates with diameters larger than 100 nm with a low dispersion in size. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：3485 / 3489

页数：5

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