Micromagnetic analysis of shielded write heads using symmetric multiprocessing systems

Yasushi Kanai, Kazuya Koyama, Manabu Ueki, Toshio Tsukamoto, Kazuetsu Yoshida, Simon John Greaves, Hiroaki Muraoka

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Acceleration of micromagnetic calculations on symmetric multiprocessing (SMP) systems is investigated. A speed up of more than 20 times has been realized compared with the serial processing software. The SMP system with the optimized software has a speed up of 5.6 times compared to a previous version on an 8-CPU cluster system. Micromagnetic analysis of a write head with trailing and side shields is performed to derive the quasi-static recording field distributions, dynamic recording fields and magnetization rotation processes. It is noted that the dynamic recording field is affected by the trailing and side shields. A write head for shingled recording is also analyzed and is found to be promising due to its higher recording field.

Original languageEnglish
Article number5512943
Pages (from-to)3337-3340
Number of pages4
JournalIEEE Transactions on Magnetics
Volume46
Issue number8
DOIs
Publication statusPublished - 2010 Aug

Keywords

  • Magnetic recording heads
  • micromagnetic analysis
  • parallel computing
  • perpendicular magnetic recording

ASJC Scopus subject areas

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

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