3820 Effect of ultra-thin liquid lubricant films on slider hysteresis instability : Comparison with AFM force-curve characteristics
Details
In order to achieve a magnetic recording density of 1 Tb/in^2, the spacing is expected to be less than 2-3 nm. However, a critical issue in achieving such an ultra-low spacing is the dynamic instability of the head disk interface (HDI).The goal of this research is to clarify the effects of the lubricant materials on slider hysteresis behavior in detail. In this study, the differences in the touchdown and takeoff velocities were monitored by varying the lubricant film materials of the disks. On the other hand, the differences in the force curves by varying the lubricant materials were investigated simultaneously. By comparing the both obtained experimental results, the fundamental mechanism of slider touchdown-takeoff hysterisis instability was studied and discussed.
