Abstract
Recently proposed antiferromagnetic-coupled (AFC) media is studied in detail. The parameters, which control the switching field of the stabilizing layer and hence, the Mrδ reduction are understood by theory and experiment. It was observed that the switching field of the stabilizing layer could be controlled by experimental parameters to be on either side of remanence. Mrδ reduction could be achieved by a reduction of anisotropy constant, thickness or magnetization of the stabilizing layer. The coercivity and thermal stability of the AFC media is larger than that of a single magnetic layer.
Original language | English (US) |
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Pages (from-to) | 1438-1440 |
Number of pages | 3 |
Journal | IEEE Transactions on Magnetics |
Volume | 37 |
Issue number | 4 I |
DOIs | |
State | Published - Jul 2001 |
Event | 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States Duration: Jan 7 2001 → Jan 11 2001 |
Bibliographical note
Funding Information:Manuscript received October 13, 2000. This work was supported in part by Hoya Magnetics, Singapore. The authors are with Data Storage Institute, Singapore - 117608 (e-mail: [email protected];{jpwang; xshi; siewit; zsshan}@dsi.nus.edu.sg). Publisher Item Identifier S 0018-9464(01)05630-8.
Keywords
- Anisotropy
- Antiferromagnetic coupling
- Magnetic recording
- Recording media
- Thermal stability