磁気超解像を用いた光変調ダイレクトオーバーライト技術

概要

論文の詳細を見る
Light intensity modulation direct overwrite (LIM-DOW) and magnetically induced super resolution (MSR) readout are effective means of increasing the write transfer rate and the storage capacity of magneto-optical disks, respectively. LIMDOW layers and MSR readout layers were combined by exchange coupling and both of these advantages were realized in a single magneto-optical disk. This paper describes how threshold temperatures of LIMDOW-MSR disks were designed to maximize the read power margin and the erase power margin and to narrow the track pitches. It also describes the write and read characteristics of LIMDOW-MSR disks using front aperture detection type and rear aperture detection type MSR and land/groove recording schemes. LIMDOW-MSR disks have a potential areal density of more than 3.5 Gbit/inch^2, and are expected to be used as multi-media data storage media.
1997-04-01