Effect of Exchange coupling on Medium noise in Perpendicular Magnetic Recording

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Other Title
  • 垂直磁気記録媒体ノイズにおける粒間交換相互作用の影響(垂直記録および一般)
  • 垂直磁気記録媒体ノイズにおける粒間交換相互作用の影響
  • スイチョク ジキ キロク バイタイ ノイズ ニ オケル リュウカン コウカン ソウゴ サヨウ ノ エイキョウ

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Description

Voronoi cells noise calculation which took in head field gradient and switching field distribution was performed. The existence of magnetic cluster is needed to explain measured transition jitter. Narrow switching field distribution effectively reduces transition width and transition jitter. The correlation between medium noise saturation against recording density and transition fluctuation from MFM image analysis was studied. Finite size of magnetic cluster results in the noise saturation.

Journal

  • ITE Technical Report

    ITE Technical Report 26.37 (0), 25-30, 2002

    The Institute of Image Information and Television Engineers

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