Parallel between playback in perpendicular and longitudinal recording

Sakhrat Khizroev, Dmitri Litvinov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Although, today, perpendicular magnetic recording receives substantial attention in the data storage industry, still conventional longitudinal readers (LR) are commonly used in perpendicular recording. Such a system cannot offer the optimal resolution because the LR is designed so that it is dominantly sensitive to the longitudinally written magnetization transitions. In this paper, the conformal mapping (CM) technique is used to develop a theory, which defines the guidelines on how to design an optimal perpendicular reader (PR), which is best suited for perpendicular recording. Schwartz-Christoffel transformation was used to find the requirements for optimal PR designs for providing the playback waveforms identical to the waveforms. provided by an equivalent LR in longitudinal recording. To support the theoretical conclusions, 3D boundary element modeling was developed to calculate the sensitivity field profiles for the yoke type PR and the conventional LR.

Original languageEnglish (US)
Title of host publicationINTERMAG Europe 2002 - IEEE International Magnetics Conference
EditorsJ. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, Jo De Boeck, R. Wood
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)0780373650, 9780780373655
DOIs
StatePublished - 2002
Externally publishedYes
Event2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands
Duration: Apr 28 2002May 2 2002

Publication series

NameINTERMAG Europe 2002 - IEEE International Magnetics Conference

Conference

Conference2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
Country/TerritoryNetherlands
CityAmsterdam
Period4/28/025/2/02

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Surfaces, Coatings and Films

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