Abstract
Contact recording systems have been studied for future magnetic recording disks with a high recording density. Tribological key technologies for ultra-low spacing and high wear performance are required for the contact systems. In this study, design concepts for contact systems will be discussed from a viewpoint of low spacing and wear behaviors. As a result, a minimum spacing of 3 nm and a high wear performance were obtained for optimal design of contact systems, i. e. pad design and lubricant material, and so on.