The effect of stabilizing layer on the SNR and thermal stability in the strongly coupled AFC media by micromagnetics simulation

摘要

AFC media with varying antiferromagnetic(AF) coupling constant J, anisotropy constant and thickness of the stabilizing were simulated. The effects of the parameters on SNR and thermal stability were studied. It was found that the media with strong AF exchange bias field have the enhanced SNR characteristics and the media with the higher t{sub}2 of the stabilizer layer have the lowered signal decay when Ku{sub}2·t{sub}2 are set to be constant to have similar kink coercivity.