S1603-1-3 Dynamic behavior of ultra-thin liquid surface by repetitively applied stress : Linear analyses by liquid deformation under vibrating flying head slider

Abstract

In recent magnetic storage systems, the spacing between the flying head and the disk has been dramatically decreased to less than 10 nm for realizing ultra-high density recording. Therefore, it is very important to investigate the deformation and flow characteristics of the lubricant on the recording disk, especially the dynamic deformation of the lubricant, which is suffered from the repetitively applied pressure and shear stress by the flying head slider. In this paper, the dynamic behaviors of the ultra-thin liquid (lubricant) surface under vibrating flying head slider were numerically obtained. The dependence of the liquid surface deformation on the frequency of the stresses and the disk speed were clarified.