Reproduced Output Signal Reduction in Perpendicular and Longitudinal Media by Thermal Fluctuations

概要

論文の詳細を見る
Demagnetizing Fields in recorded bits accelerated thermal decay of data output in magnetic recording media. The spread of transition area also promotes the reduction of obtained data output. We compared the time dependencies of data output at several recording densities when a spin stand was used with the time dependencies of the remanent magnetization in various applied fields. The various applied fields corresponded to the demagnetizing fields in the recorded bits at their respective recording densities. We have experimentally confirmed that reproduced output reduction can explained by considering the degradation of both magnetization and transition length for longitudinal recording media. We have also experimentally confirmed that output reduction can be reduced by putting a soft magnetic underlayer for perpendicular media.
社団法人日本磁気学会の論文