MoP-3 EFFECTS OF SURFACE ROUGHNESS ON CHARACTERISTICS OF LIQUID TRANSFER DUE TO BREAKAGE OF LIQUID MENISCUS BRIDGE

抄録

In recently developed magnetic storage systems, the spacing between the slider and the disk has been decreased to less than 2 nm. This ultra-small spacing results in the slider picking up the liquid lubricant on the disk. The small amount of the transferred (picked-up) lubricant affects the flying characteristics. In this study, we experimentally investigated the basic characteristics of liquid transfer due to the breakage of a liquid meniscus bridge. Furthermore, the force curves of the meniscus bridge were measured. The effects of the surface roughness on the liquid transfer and the force curves were discussed.