Visualization of Tribologically Induced Energy Disturbance to the Stability of HIgh Density Magnetic Recording

概要

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As technology moves to sub-10 nm grain size for magnetic disk media and sub-10 nm or deep sub-10 nm head-disk spacing, it is of crucial importance to prevent the conventionally defined thermal decay and tribologically induced decay of recorded magnetic signal. A novel method is proposed by the authors to record and, then, visualize the signature of potential tribological decay. The details of the methodology, its working principles, and typical results obtained are presented in this work. The method is based on a special disk which uses a layer of magneto-optical material with low Curie temperature to replace the magnetic layer used in magnetic media. The method and corresponding setup were used successfully in the visualization of potential decay caused by slider-particle-disk interaction, slider-disk interaction during track seeking operations, and slider-disk impact during loading and unloading operations.
社団法人電子情報通信学会の論文
2001-11-01