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Electrodeposited Co nanowires were grown on self assembled diblock copolymer nanoporous templates. While keeping the template pore size and electrolyte pH value constant at 13.7 ㎚ and 3.82, respectively, the DC current density (5 ㎃/㎝2 and 50 ㎃/㎝2) and time of deposition (50s, 100s, 150s and 200s) were varied to obtain nanowires of varied aspect ratios and morphologies. It was observed that the time of electrodeposition, height of the nanowirelinearly enhances. SEM images of the samples indicate that the template pores were completely filled during deposition for current density of 50㎃/㎝2. Excess times of deposition produced a thin layer of the deposited material on top of the porous template. Magnetic hysteresis properties of the generated nanowires were examined by vibration sample magnetometry. The loops displayed are highly square with coercivities of few tens of oersteds. The magnetization of the Co nanowires enhances as the height of the wires increases. The results were analyzed to understand the influence of current density on the growth of nanowires.

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Abstract
1. Introduction
2. Experimental details
3. Results and Discussion
4. Conclusions
5. References

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UCI(KEPA) : I410-ECN-0101-2009-428-017529761