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https://doi.org/10.1016/j.jmmm.2003.11.264
Title: | Simulation of magnetic recording of periodic antidot array | Authors: | Guo, J. Jalil, M.B.A. |
Keywords: | Antidot array Bias field Micromagnetic simulation Shape anisotropy |
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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