Well-aligned Nickel Nanochains Synthesized by a Template-free Route

Highly uniform and well-aligned one-dimensional Ni nanochains with controllable diameters, including 33, 78, and 120 nm, have been synthesized by applying an external magnetic field without any surface modifying agent. The formation can be explained by the interactions of magnetic dipoles in the pre...

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Bibliographic Details
Published in:Nanoscale research letters 2009-12, Vol.5 (3), p.597-602
Main Authors: Li, Pengwei, Wang, Rongming, Chen, Weimeng, Chen, Chinping, Gao, Xingyu, Wee, A. T. S
Format: Article
Language:English
Subjects:
Electron microscopy
Magnetic anisotropy
Ni nanostructure
X-ray absorption spectroscopy
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Summary:Highly uniform and well-aligned one-dimensional Ni nanochains with controllable diameters, including 33, 78, and 120 nm, have been synthesized by applying an external magnetic field without any surface modifying agent. The formation can be explained by the interactions of magnetic dipoles in the presence of applied magnetic field. Magnetic measurements demonstrate that the shape anisotropy dominates the magnetic anisotropy. The demagnetization factor, ∆N, is in the range of 0.23-0.36.
ISSN:1931-7573
1556-276X
1556-276X
DOI:10.1186/1556-276X-5-597