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Perpendicular Magnetic Recording

  • Chapter
Magnetic Storage Systems Beyond 2000

Part of the book series: NATO Science Series ((NAII,volume 41))

Abstract

Perpendicular magnetic recording (PMR) has the fundamental potential of extremely high bit density recording. Although many efforts have been made for the practical use of PMR, the recording apparatus has still not been manufactured commercially. One of many problems hesitated to make PMR practicable is that a reasonable way has still not become clear to practical use. Moreover there were a lot of unsolved problems peculiar to PMR, such as media noise, head-induced erasure and so on. Lately, the solutions to these technical issues were clarified for the practical use of a perpendicular magnetic hard disk drive. Furthermore, we have attained an error rate of less than 10-p7 at 310kFCI with a newly developed flying type thin-film single-pole head in 1998, and Hitachi group has been presented practical capability of HDD with PMR over 50Gbit/inchp2 in INTERMAG 2000. In this paper, first, the reason why PMR is useful for high bit density writing will be described from the theoretical and the historical background. Then, how should make PMR, what characteristics are obtained, and what ability and possibility over 1OOGbit/inchp2 exist, the analysis, the results and the future, will be discussed.

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Author information

Authors and Affiliations

  1. Research Institute of Electrical Communication, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan

    Yoshihisa Nakamura

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  1. Yoshihisa Nakamura
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Editor information

Editors and Affiliations

  1. University of Delaware, Newark, DE, USA

    George C. Hadjipanayis

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© 2001 Springer Science+Business Media Dordrecht

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Nakamura, Y. (2001). Perpendicular Magnetic Recording. In: Hadjipanayis, G.C. (eds) Magnetic Storage Systems Beyond 2000. NATO Science Series, vol 41. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0624-8_4

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  • DOI: https://doi.org/10.1007/978-94-010-0624-8_4

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-4020-0118-5

  • Online ISBN: 978-94-010-0624-8

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