Hongtao Wang; Chan Kheong Sann; Zhimin Yuan; Pantelis, S.A., "Investigation on the Effect of an In-Plane Auxiliary Field on the SNR of HAMR Recording Systems," in Magnetics, IEEE Transactions on , vol.50, no.11, pp.1-4, Nov. 2014 doi: 10.1109/TMAG.2014.2324615
In this work, we consider the application of an in-plane auxiliary field into the Exchange-Coupled Composite (ECC) medium in the Heat-Assisted Magnetic Recording (HAMR) system. The dynamic micromagnetic simulations are conducted based on the Landau-Lifshitz-Bloch (LLB) equations and the SNR characterizations are performed. The effect on the Signal-to-Noise Ratio (SNR) of the HAMR system is investigated. The improvement on the SNR with the auxiliary field in negative down-track direction is identified.
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