Fabrication of Uniform Magnetic Nanowire Array

Two-dimensional uniform arrays of identical nanometer size nickel wires with high aspect ratios and large packing densities have been fabricated. The arrays were made by electrodeposition into nanochannel glass templates. The templates were polished and etched for enough time to obtain parallel, uniform, cylindrical nano-channels. Obtained nickel wires were circular, each approximately 150 μm long and 80 - 160 nm in diameter, depending on the diameter of the nanochannel of the template. Scanning electron microscopy has been used to characterize the nanostructures. A superconducting quantum interference device magnetometer has been used to investigate the magnetic properties of the nanowire arrays. Preliminary results on fabrication of nickel nano-arrays by supercritical carbon dioxide fluid process were also presented