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Perpendicular Recording Media

  • Chapter
The Physics of Ultra-High-Density Magnetic Recording

Part of the book series: Springer Series in Surface Sciences ((SSSUR,volume 41))

Abstract

Perpendicular recording has been frequently proposed as a technique for surpassing the limits placed on longitudinal recording by thermal fluctuations. Basically, superparamagnetism will be a problem when the product of the anisotropy K and the granular volume V is no longer sufficiently greater than the product of the Boltzman constant k B and the temperature T. At this point thermal fluctuations will erase stored data, the granular volume can no longer be decreased, and the rapid density growth of the recording industry will end.

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Authors
  1. Randall Victora
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Editors and Affiliations

  1. Seagate Technology, 7801 Computer Ave., S., Bloomington, MN, 55435, USA

    Martin L. Plumer  & Johannes van Ek  & 

  2. Seagate Technology, River Park Commons, Suite 550, 2403 Sidney Street, Pittsburgh, PA, 15203, USA

    Dieter Weller

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© 2001 Springer-Verlag Berlin Heidelberg

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Victora, R. (2001). Perpendicular Recording Media. In: Plumer, M.L., van Ek, J., Weller, D. (eds) The Physics of Ultra-High-Density Magnetic Recording. Springer Series in Surface Sciences, vol 41. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-56657-8_8

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  • DOI: https://doi.org/10.1007/978-3-642-56657-8_8

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-62686-9

  • Online ISBN: 978-3-642-56657-8

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