Synthesis and magnetic properties of multilayer Ni/Cu and NiFe/Cu nanowires |
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| Authors: | R S Liu S C Chang I Baginskiy S F Hu C Y Huang |
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| Institution: | (1) Department of Chemistry, National Taiwan University, 106 Taipei, Taiwan;(2) Taiwan Spin Research Center, National Chung Cheng University, 621 Chia-Yi, Taiwan;(3) National Nano Device Laboratories, 300 Hsinchu, Taiwan;(4) National Taiwan Normal University, 116 Taipei, Taiwan |
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| Abstract: | Highly ordered composite nanowires with multilayer Ni/Cu and NiFe/Cu have been fabricated by pulsed electrodeposition into
nanoporous alumina membrane. The diameter of wires can be easily varied 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. The MFM images indicate that every ferromagnetic layer separated by Cu layer was present as single isolated
domain-like magnet. This technique has potential use in the measurement and application of magnetic nanodevices. |
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| Keywords: | Nanowires Ni/Cu NiFe/Cu anodic aluminum oxide |
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