A-2-1 Theoretical analyses of interaction pressures acting between solid surfaces considering spatially periodic distribution of material properties : Pressure characteristics for two-dimensional material distribution

Abstract

Recording media with grooves such as discrete track media (DTM) and bit-patterned media (BPM) are considered to be some of the most promising media for achieving ultrahigh track densities. It is becoming increasingly important to analyze the static and dynamic characteristics of flying head sliders over DTM/BPM using the molecular gas-film lubrication (MGL) equation considering surface interactions. In this paper, we established an analysis method of Lennard-Jones interaction pressures acting between slider and a disk with two-dimensional distribution of material properties by using Fourier series expansion. The characteristics of the interaction pressures are quantitatively clarified.