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Formation and Characterization of Magnetic Multilayer Ni/Cu Nanowires

Published online by Cambridge University Press:  01 February 2011

R. S. Liu ,
S. C. Chang ,
S. F. Hu  and
C. Y. Huang
R. S. Liu
Affiliation:
Department of Chemistry, National Taiwan University, Taipei 106, Taiwan Taiwan Spin Research Center, National Chung Cheng University, Chia-Yi 621, Taiwan
S. C. Chang
Affiliation:
Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
S. F. Hu
Affiliation:
Taiwan Spin Research Center, National Chung Cheng University, Chia-Yi 621, Taiwan National Nano Device Laboratories, Hsinchu 300, Taiwan
C. Y. Huang
Affiliation:
Taiwan Spin Research Center, National Chung Cheng University, Chia-Yi 621, Taiwan National Taiwan Normal University, Taipei 116, Taiwan
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Abstract

Highly ordered composite nanowires with multilayer of Ni/Cu, have been fabricated by pulsed electrodeposition into nanoporous alumina membrane. The diameter of wires can be easily controlled by pore size of alumina, ranging from 30 to 100 nm. The applied potential and the duration of each potential square pulse determine the thickness of the metal layers. The nanowires have been characterized by transmission electron microscopy (TEM), magnetic force microscopy (MFM), and vibrating sample magnetometer (VSM) measurements. From the result of MFM analysis, the magnetic multilayer nanowires indicate unique magnetic property. The MFM images indicate that every ferromagnetic layer separated by Cu layer was present as single isolated domain like magnet. This technique has potential for use in the measurement and application of magnetic nanodevices.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 877: Symposium S – Magnetic Nanoparticles and Nanowires , 2005 , S7.8
Copyright
Copyright © Materials Research Society 2005

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