Time Dependence of Magnetic Properties in Perpendicular Recording Media

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概要

• 論文の詳細を見る

• Time decay of magnetic properties in perpendicular magnetic recording media was studied. It was suggested that magnetization in media with a low energy ratio, KV/kT, of 50 is thermally stable in the absence of a demagnetizing field while coercivity exhibits a large time dependence. Magnetization in perpendicular recording media exhibited an appreciable time decay even for films with a large energy ratio of 300. The decay is attributed to the small perpendicular squareness due to a large perpendicular demagnetizing field acting in the media. The recording density dependence of the time decay in the output was explained in terms of the change in the demagnetizing field with the density. It is concluded that the use of media with large squareness as well as large energy ratio effectively reduces time decay in the output.

• 社団法人電子情報通信学会の論文
• 1997-09-25

著者

• Ouchi K

  Ait (akita Research Institute Of Advanced Technology)

• OUCHI Kazuhiro

  AIT (Akita Research Institute of Advanced Technology)

• HONDA Naoki

  AIT (Akita Research Institute of Advanced Technology)

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• Time Dependence of Magnetic Properties in Perpendicular Recording Media
• Simulation Analysis for Ring Head Recording on Single-Layer Perpendicular Recording Media (Special Issue on Information Storage Technologies for the 21st Century)

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