Eddy current effect in soft magnetic backlayer for PMR media

T. Tanaka, S. Yamamoto, H. Kurisu, M. Matsuura

Research output: Contribution to journalArticle

Abstract

Flux density distributions in the recording layer and soft magnetic backlayer of a perpendicular magnetic recording medium were calculated up to 5 GHz using a three-dimensional finite element method electromagnetic field analysis simulator, where eddy current effects in the high-frequency recording process were considered. It is presented that the flux density distribution in a recording layer hardly depends on the eddy current effect, although flux density distribution in a soft magnetic backlayer changes depending on the recording frequency and resistivity of the soft magnetic backlayer.

Original languageEnglish
Pages (from-to)481-485
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume287
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - Feb 1 2005
Externally publishedYes

Fingerprint

Eddy currents
eddy currents
recording
Fluxes
density distribution
flux density
Magnetic recording
Electromagnetic fields
magnetic recording
Simulators
simulators
Finite element method
finite element method
electromagnetic fields
electrical resistivity

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Eddy current effect in soft magnetic backlayer for PMR media. / Tanaka, T.; Yamamoto, S.; Kurisu, H.; Matsuura, M.

In: Journal of Magnetism and Magnetic Materials, Vol. 287, No. SPEC. ISS., 01.02.2005, p. 481-485.

Research output: Contribution to journalArticle

Tanaka, T. ; Yamamoto, S. ; Kurisu, H. ; Matsuura, M. / Eddy current effect in soft magnetic backlayer for PMR media. In: Journal of Magnetism and Magnetic Materials. 2005 ; Vol. 287, No. SPEC. ISS. pp. 481-485.
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