Fast Calculation of Read Field from Perpendicular Recording Medium Using Head Characteristic Matrix

Y. Suzuki, H. Aoi, H. Muraoka, Y. Nakamura

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A very fast calculation method of calculating the three-dimensional read head field from a perpendicular recording medium is presented using a head characteristic matrix K, and the medium charge with a spacing loss correction. The numerical integration in the evaluation of the matrix can be replaced with an infinite sum, speeding up the calculation significantly. The head characteristic matrix has a physical significance as the inverse matrix of the self-magnetostatic energy with a charge placed on the air bearing surface (ABS) of the read gap.

Original languageEnglish
Pages (from-to)2276-2278
Number of pages3
JournalIEEE Transactions on Magnetics
Volume42
Issue number10
DOIs
Publication statusPublished - 2006 Oct

Keywords

  • Field calculation
  • giant magnetoresistive (GMR) head
  • magnetic recording head
  • perpendicular magnetic recording

ASJC Scopus subject areas

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

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