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Fabrication of ferromagnetic nanocluster rods by magnetic trapping

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3 Author(s)
Huh, Seung H. ; Keio University, Faculty of Science and Technology, Department of Chemistry, 3-14-1 Hiyoshi, Kohoku, Yokohama 223-8522, Japan ; Nakajima, Atsushi ; Kaya, Koji

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1638885 

In a one-pot fabrication at room temperature, both an iron-neodymium-dysprosium-boron permanent magnet (Fe66Nd28Dy4B1) and cobalt (Co) metal have been directly converted into the corresponding ferromagnetic nanometer-scale cluster (nanocluster) rods using pulsed-laser ablation combined with magnetic-field trapping. The morphology of the produced nanomaterials was analyzed by electron microscopy and the composition by electron energy-loss spectroscopy, and it was found that one-dimensional structured soft magnets, up to ∼150 nm in length, consist of magnetic clusters a few nanometers in diameter. The mechanism and driving behind their growth process and their magnetic evolution have been proposed. © 2004 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:95 ,  Issue: 5 )

Date of Publication:

Mar 2004

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