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Related Experiment Videos

Physics of perpendicular recording with a patterned soft underlayer.

Sakhrat Khizroev1, Yazan Hijazi, Nissim Amos

  • 1Center for Nanoscale Magnetic Devices, Florida International University, EC 3982 10555, W Flagler Street, Miami, Florida 33174, USA.

Journal of Nanoscience and Nanotechnology
|April 26, 2007
PubMed
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Patterning the soft underlayer (SUL) in magnetic recording media can significantly enhance recording fields and gradients. This approach offers a potential solution for increasing areal density beyond current limitations.

Area of Science:

  • Magnetic Recording Technology
  • Materials Science
  • Data Storage

Background:

  • Current perpendicular recording methods utilize a continuous soft underlayer (SUL).
  • This configuration may limit the maximum achievable areal density in data storage.

Purpose of the Study:

  • To investigate the potential of patterning the soft underlayer (SUL) for magnetic recording.
  • To enhance the areal density of data storage media.

Main Methods:

  • Comparative study of various SUL patterning configurations.
  • Analysis of combinations with different recording layer materials.

Main Results:

  • Patterned SUL effectively brings the image head closer to the recording media.

Related Experiment Videos

  • Significant increases (several factors) in recording and sensitivity fields were observed.
  • Localization of fields across the entire media thickness was achieved.

    • Conclusions:

    • SUL patterning offers a promising strategy to overcome limitations of continuous SULs.
    • This technique can substantially boost recording field strength and localization.
    • Potential for significantly increasing achievable areal density in magnetic recording media.