Journal
IEEE TRANSACTIONS ON MAGNETICS
Volume 45, Issue 10, Pages 3848-3850Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2009.2023877
Keywords
Heat-assisted magnetic recording (HAMR); micromagnetic modeling; thermal gradients
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The performance of heat assisted magnetic recording (HAMR) is simulated using a multilayer micromagnetic model. Recording performance parameters such as signal-to-noise ratio (SNR) were simulated as a function of the vertical thermal gradient in the recording media. Simulation results show that the vertical thermal gradient in the media has to be higher than (-28 degrees/nm) in order to have no loss of SNR based on parameters used in the model. Curie temperature writing is also necessary in order to maximize the SNR.
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