抄録
This paper focuses on recording and reproducing processes and recording / reproducing characteristics for perpendicular recording. Two head/medium combinations of current interest in perpendicular recording are reviewed. One is a Single-pole head/Double-layered medium combination and other is a Ring head / Single-layer combination. Perpendicular magnetic recording has feasibility of extremely high density recording because of its demagnetization free character. To realize such high density recording, however, making the most effective use of head-to-medium interaction is important. Moreover, this review indicates that for enhancing the recording and reproducing characteristics, it is indispensable to investigate not only the macroscopic magnetic properties but also the microscopic properties of the medium and furthermore the vectorial magnetization reversal mechanism of the medium. The present situation and future perspective of the application of perpendicular magnetic recording to magnetic recording system are also described in this paper.
