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|Title:||Simulation of magnetic recording of periodic antidot array||Authors:||Guo, J.
|Issue Date:||May-2004||Citation:||Guo, J., Jalil, M.B.A. (2004-05). Simulation of magnetic recording of periodic antidot array. Journal of Magnetism and Magnetic Materials 272-276 (I) : 722-723. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmmm.2003.11.264||Abstract:||Micromagnetic simulation is performed to study the recording quality of a permalloy (Py) antidot array. A Karlqvist head field is applied to a single bit region to reverse its magnetization. The signal quality is quantified by the reciprocal of noise N-1 and contrast ratio Cr, The results showed that N-1 and Cr increase significantly with the increasing of the bit aspect ratio. The value of Cr can also be improved by applying a bias field Hy throughout the film, for films with high aspect ratio. For those with low ratio, Hy causes undesirable switching of the neighbouring bits instead. © 2003 Elsevier B.V. All rights reserved.||Source Title:||Journal of Magnetism and Magnetic Materials||URI:||http://scholarbank.nus.edu.sg/handle/10635/84188||ISSN:||03048853||DOI:||10.1016/j.jmmm.2003.11.264|
|Appears in Collections:||Staff Publications|
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