Magnetically directed self-assembly of submicron spheres with a Fe3O4 nanoparticle shell

被引：92
|
作者：
Bizdoaca, EL
Spasova, M
Farle, M
Hilgendorff, M
Caruso, F
机构：
[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Halbleiterphys & Opt, D-38106 Braunschweig, Germany
[2] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany
[3] Max Planck Inst Colloids & Interfaces, D-14424 Potsdam, Germany
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 240卷 / 1-3期
关键词：
magnetic nanoparticles; core-shell particles; self-assembly; ferromagnetic resonance;
D O I：
10.1016/S0304-8853(01)00724-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A grid of micrometer-sized core-shell particles was fabricated by magnetophoretic deposition using a water-based colloidal solution. The core-shell particles consist of a 640 nm diameter polystyrene spherical core covered with a shell of five layers of 12 nm. diameter Fe3O4 nanocrystals. The separation and the length of the individual chains can be tuned by the magnetic field strength and the concentration of the particle solution. The magnetic properties were characterized by angular-dependent ferromagnetic resonance and SQUID magnetometry. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：44 / 46
页数：3
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