| Summary: | 碩士 === 國立成功大學 === 物理學系碩博士班 === 97 === In this thesis, we fabricated Co and CoPt nanowire arrays of different diameters using AAO templates and electrodeposition. We wanted to investigate the relation between the magnetic properties and the diameter of nanowire arrays.
We have fabricated AAO templates with pore diameters of 25nm (AAO1), 40nm (AAO2) and 70nm (AAO3) on pure Al foils, and thinned the alumina barrier layers under the pores for AAO1 and AAO2 templates.
By electrodeposition, we have fabricated Co nanowires using AAO1 and AAO2 template. CoPt nanowires were also fabricated using AAO1, AAO2 and AAO3 template. By increasing pH value of electrolyte to 6, Co concentration does increase in CoPt nanowires using AAO2 template. CoPt nanowires have atomic ratio of Co and Pt close to 1.
Both Co and CoPt nanowires did not show any relations between the magnetic property and the pore diameter. Because both Co and CoPt nanowires contain very fine magnetic grains that much smaller then the diameters of nanowire.
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