Perpendicular recording with reduced skew angle sensitivity

E. Stefanescu, N. Amos, R. Ikkawi, B. Lee, R. Chomko, D. Litvinov, S. Khizroev

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A detailed analysis to the problem of skew angle sensitivity in perpendicular magnetic recording is presented. A proposed analytical model is supported by numerical simulations with a commercial boundary element software program. According to the presented equivalent magnetic circuit model, a single pole recording head with a laminated composition involving two layers of different magnetic materials could be used to localize adequately strong magnetic field in the vicinity of the trailing edge of the recording head. It is shown that the recording field generated under each lamination layer is proportion to the relative magnetic permeability of the respective layer. Such localization of the magnetic flux results in substantially reduced skew angle sensitivity.

Original languageEnglish (US)
Pages (from-to)270-273
Number of pages4
JournalJournal of Nanoelectronics and Optoelectronics
Volume3
Issue number3
DOIs
StatePublished - Dec 2008
Externally publishedYes

Keywords

  • Laminated magnetic pole
  • Perpendicular magnetic recording
  • Single pole head
  • Skew angle sensitivity
  • Soft magnetic underlayer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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