3-D FEM analysis of thermal degradation in writing and reading characteristics of a perpendicular magnetic head

H. Kurose, M. Ohtake, Daisuke Miyagi, N. Takahashi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In order to achieve high-density recording, the detailed behavior of thermal degradation should be investigated. In this paper, the degradation of magnetization of high-density recording medium is examined using the 3-D finite element method (FEM) combined with the modeling of Stoner-Wohlfarth (SW) particles and Neel-Arrhenius switching probability. It is shown that the anisotropy field Hk suppressed the thermal degradation and the saturation magnetization Ms enhances it. The thermal degradation is also changed by the amplitude of magnetization.

Original languageEnglish
Pages (from-to)2917-2920
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume320
Issue number22
DOIs
Publication statusPublished - 2008 Nov 1
Externally publishedYes

Keywords

  • Finite element method
  • Perpendicular magnetic recording
  • Stoner-Wohlfarth particle
  • Thermal degradation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of '3-D FEM analysis of thermal degradation in writing and reading characteristics of a perpendicular magnetic head'. Together they form a unique fingerprint.

Cite this