Please use this identifier to cite or link to this item: 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
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