Assembly and magnetic properties of nickel nanoparticles on silicon nanowires

被引：8
|
作者：
Ingole, S. [1 ]
Manandhar, P. [1 ]
Wright, J. A.
Nazaretski, E.
Thompson, J. D.
Picraux, S. T. [1 ,2 ]
机构：
[1] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA
[2] Arizona State Univ, Sch Mat, Tempe, AZ 85287 USA
来源：
APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 22期
关键词：
coercive force; electrodeposition; elemental semiconductors; ferromagnetic materials; nanoparticles; nanowires; nickel; MICROFABRICATION; NANOCRYSTALS;
D O I：
10.1063/1.3148860
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The directed assembly of magnetic Ni nanoparticles at the tips of silicon nanowires is reported. Using electrodeposition Ni shells of thickness from 10 to 200 nm were selectively deposited on Au catalytic seeds at the ends of nanowires. Magnetic characterization confirms a low coercivity (approximate to 115 Oe) ferromagnetic behavior at 300 K. This approach to multifunctional magnetic-semiconducting nanostructure assembly could be extended to electrodeposition of other materials on the nanowire ends, opening up additional approaches to device integration. Such magnetically functionalized nanowires offer an approach to developing highly localized magnetic probes for high resolution magnetic resonance force microscopy.
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页数：3
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