Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3075565
Title: Antiferromagnetically coupled patterned media
Authors: Piramanayagam, S.N.
Aung, K.O.
Deng, S. 
Sbiaa, R.
Issue Date: 2009
Citation: Piramanayagam, S.N., Aung, K.O., Deng, S., Sbiaa, R. (2009). Antiferromagnetically coupled patterned media. Journal of Applied Physics 105 (7) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3075565
Abstract: Magnetostatic interactions in patterned media are responsible for increasing the switching field distribution and reducing the thermal stability. Micromagnetic simulations indicate that a reduced saturation magnetization (Ms) and increased anisotropy constant (Ku) lead to better thermal stability. However, writability will be a concern with this approach. Patterned media with an antiferromagnetically coupled (AFC) recording media structure is studied to obtain high thermal stability even with a larger Ms and larger Ku. With the AFC structure, the reduced remanence magnetization (Mr) leads to a reduced magnetostatic interaction, even though the Ms is larger. Magnetic force microscopy measurements indicate that the AFC media show a narrower switching field distribution. © 2009 American Institute of Physics.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/75584
ISSN: 00218979
DOI: 10.1063/1.3075565
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