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http://dx.doi.org/10.5229/JKES.2003.6.3.208

Variation of the Magnetic Properties of Electrodeposited CoP Nanowire Arrays According to Their Size and Microstructure  

Kim, Yi J. (Korea Institute of Science and Technology, Yonsei University)
Lee, Kwan H. (Korea Institute of Science and Technology)
Jeung, Won Y. (Korea Institute of Science and Technology)
Kim, Kwang B. (Yonsei University)
Publication Information
Journal of the Korean Electrochemical Society / v.6, no.3, 2003 , pp. 208-211 More about this Journal
Abstract
We have investigated the dimensional and microstructural dependence of magnetic properties of CoP nano-wire arrays fabricated by electrodeposition on AAO(anodic aluminum oxide) templates with different-size nanopores. Our results indicate that the magnetic properties of nanowire arrays can be varied with their dimensions and microstructures. As for the CoP nanowire arrays with the diameter of 20nm, it was found to have the coercivity more than 2.6kOe due to the shape anisotropy and squareness(Mr/Ms) of $\~0.8$. The CoP nanowire arrays with the diameter of 200m, however, showed very different magnetic properties depending on the current densities. Nanowires fabricated at $5mA/cm^2$ had stronger tendency to have the preferred crystallographic orientation of (002) parallel to the nanowire than those fabricated at $35mA/cm^2$ These microstructural differences are the reason why CoP nanowire arrays prepared at different current densities exhibited different magnetic properties.
Keywords
CoP; Nanowire arrays; Electroforming; Microstructure; Magnetic properties;
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