발간논문

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Vol.41, No.10, 719 ~ 723, 2003
Title
Dependence of Magnetic Properties of ac Electroformed Co(P) Nanowires on Applied Voltage
이관희 Lee Gwan Hui , 김긍호 Kim Geung Ho , 김이진 Kim I Jin , 정원용 Jeong Won Yong
Abstract
We have investigated the magnetic properties of Co(P) nanowire arrays fabricated by ac electroforming into self-ordered nanosized pores in anodic aluminum oxide (AAO), prepared by anodizing the pure aluminum foil. The nanopores were found to have an average diameter of 20 nm and aspect ratios of more than several hundreds. Magnetic properties of Co(P) nanowires were found to have the coercivity of more than 2.6 kOe due to the shape anisotropy and squareness(M_(r)/M_(s)) of ~0.8. It was particularly interesting to note that Co(P) nanowires showed different crystallographic structures depending on the applied potential. Co(P) nanowire prepared at ac-10 V_(rms) exhibited better magnetic properties than one prepared at ac-11 V_(rms) due to the crystallographic structural variation.
Key Words
Co(P), Nanowire, Ac electroforming, Applied voltage, Magnetic properties
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