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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Rozman, K.Z. Sturm, S. McGuiness, P.J. Kobe, S. |
| Copyright Year | 1965 |
| Abstract | Co-Pt nanostructures having a tubular geometry, a diameter of 200 nm and a length of 2 mum were produced via direct electroplating into polycarbonate-based templates. The nanotube-formation mechanism was explained using the relative rates of deposition and the diffusion of the metal ions. The as-deposited Co-Pt nanotubes are magnetically soft, with magnetocrystalline anisotropy prevailing over the shape anisotropy. The Co-Pt nanotubes were prepared in two different stoichiometries. While the Co33Pt67 nanotubes exhibit hard magnetic properties with a coercivity of 100 kA/m, a coercivity of 680 kA/m was achieved with the Co45Pt55 nanotubes. This increase in the coercivity was attributed to the transformation of the FCC Co-Pt to the L10 phase, which happens upon annealing at 700degC for 60 min. In the first case the low coercivity is attributed to the composition being slightly out of range for the transformation to the L10 phase to occur. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 4413 |
| Ending Page | 4416 |
| Page Count | 4 |
| File Size | 1798192 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 45 |
| Issue Number | 10 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-10-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Nanotubes Coercive force Magnetic anisotropy Perpendicular magnetic anisotropy Soft magnetic materials Anisotropic magnetoresistance Nanostructures Geometry Shape Magnetic properties Pt alloy Co alloy electrochemical processes magnetic nanostuctures |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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