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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sharif, R. Zhang, X.Q. Shahzadi, S. Jiang, L.X. Han, X.-F. Kim, Y.K. |
| Copyright Year | 1965 |
| Abstract | The magnetic field (MF) annealing of dc electrodeposited ferromagnetic nanowire arrays of compositions Co94Fe06 , Co91Fe07B2 was done in the direction of their easy axis of magnetization (in plane) at 2650 C under 800 Oe applied magnetic field for 2 h. An induced magnetic anisotropy (MA) and a large increase in saturation magnetization (Ms) were manifested by the changes in hysteresis loops of the nanowire samples before and after the annealing process. The structural changes were investigated using X-ray diffraction and transmission electron microscopy (TEM). The shape of nanowires, the predicted natural texture with c-axis in the plane of membrane (because of high concentration of cobalt) and diffusional pair ordering of unlike atoms along the direction of external applied field were thought to be the causes of induced MA. The reannealing of samples in absence of MF at 400degC and 600degC produced no significant changes in hysteresis loops instead of removing the MA but with evolution of crystalline phase in both the samples. Therefore, the shape of nanowire was concluded to play the major role in persistence of induced MA in nanowire samples after high temperature annealing |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 2778 |
| Ending Page | 2780 |
| Page Count | 3 |
| File Size | 1045064 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 42 |
| Issue Number | 10 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-10-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Annealing Nanowires Magnetic fields Iron Magnetic hysteresis Shape Magnetic anisotropy Saturation magnetization X-ray diffraction Electrons magnetic field (MF) annealing Diffusional pair ordering ferromagnetic nanowires induced anisotropy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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