[7p-PA7-1~25] 9.2 Nanowires and Nanoparticles

▼ [7p-PA7-10] Electrochemical Synthesis of Ni Magnetic Wire Arrays.

〇(M1)Anissa Azizan¹, Keisuke Yamada¹, Mutsuhiro Shima¹ (1.Gifu Univ.)

Keywords:Magnetic, Wire, Electrodeposition

Ni magnetic nanowire arrays can be used inside the magnetic disc of a hard disk to further enhance the storage capacity of a hard disk by using perpendicular magnetic recording which increases the recording density. Other than that, they can also be used as a sensor due to their characteristic to respond to a change in the magnetic field based on their shape. Ni magnetic nanowires were fabricated inside the porous alumina template which has thickness of 50 ± 1 μm and pore diameter of 80 ± 8 nm. The wires consists of three layers which are Cu layer, Ni layer and Cu layer. They were fabricated by using pulse electrodeposition in two separated solution which are 0.2 M NiCl₂, 0.5 M H₃BO₃ and 0.2 M CuSO₄, 0.5 M H₃BO₃. After the wires were deposited, their magnetic properties, such as magnetization and magnetoresistance were measured and they were observed by using SEM to analyze their structure.