Evaluation of Tribological Properties of a Longitudinal Magnetic Recording Medium using Lateral Modulation Friction Force Microscope

概要

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The lateral modulation friction force microscopy (LM-FFM) technique was used to investigate the tribological characteristics of a longitudinal magnetic recording medium (hard disk). The load dependence of the frictional force between the hard disk and the Si tip should be influenced by the dynamic elasticity of the tip. Very slight wear of the hard disk due to scanning of the tip was observed and the wear depth increased linearly with increasing load. The frictional force in areas which were significantly deformed increased due to scanning of the tip. The frictional force decreased in the first stage of repeated scanning and then increased with the number of scans under a load of 1.5 or 3.5 μN. For a load of 130 nN, the frictional force betweern the tip and the sample increased with the number of scans.
社団法人応用物理学会の論文
1996-12-15