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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tae-Youb Kim Yamazaki, Y. |
| Copyright Year | 1965 |
| Abstract | In garnet particles, higher coercive-force is required to develop a practical magnetooptical storage media. Therefore, in this paper, we develop high coercive-force particles reflecting the magnetic compensation induced by the aluminum substitution, and increasing the magnetic anisotropy under the influence of cobalt substitution for applying the garnet particles to magnetooptical storage media. Nanoparticles of aluminum substituted bismuth dysprosium cobalt iron garnet (Bi-DyCoAlIG) exhibit a magnetic compensation at room temperature. The Bi-DyCoAlIG (BiDy/sub 2/Co/sub 0.2/Al/sub x/Fe/sub 4.8-x/O/sub 12/: 0/spl les/x/spl les/0.9) nanoparticles were made using coprecipitation and heat-treatment processes. The X-ray diffraction patterns of nanoparticles are clear that all the peaks were assigned to the single phase of the garnet structure. The particles size of the Bi-DyCoAlIG nanoparticles was observed to be less than 30 nm by transmitted electron microscope images which is comparables to the estimated average particle size of Scherrer's equation. The magnetic profiles of the Bi-DyCoAlIG nanoparticles show shallow minima at the composition range of 0.6 |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 2793 |
| Ending Page | 2795 |
| Page Count | 3 |
| File Size | 145648 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 40 |
| Issue Number | 4 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-07-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Nanoparticles Magnetic anisotropy Perpendicular magnetic anisotropy Garnets Aluminum Iron Cobalt Bismuth Temperature X-ray imaging |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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