Head-disk system and integration for extremely high density magnetic data recording

Abstract

This thesis investigates the key issues for ultra-low magnetic head-disk interface and configuration/integration technology of magnetic head-disk systems for extremely high density magnetic recording. The investigations include sub-nanometer resolution measurement of the stability of the head disk interface, the nanometer or sub-nanometer variation of the flying height caused by disk assembly and spindle motor, air-flow and thermal flying-height control, effects of the electrical potential on interface and exploration of new energy assisted magnetic recording for future magnetic recording.