Micromagnetic simulation of random anisotropy model

Attila Kákay, L. K. Varga

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The random anisotropy model was simulated by micromagnetic calculations performed on a 450 nm × 72 nm × 72 nm computational box, periodic in y and z directions, which consists of iron nanograins. The diminishing of effective anisotropy as a function of grain size was followed through the domain wall width. The domain wall structures have been calculated as a function of average grain sizes 10, 12, 15, 20 nm and for single-crystal, using direct integration of the Landau-Lifshitz-Gilbert equation. The domain wall width was found to increase with 1/D3 as predicted by the Herzer model.

Original languageEnglish
Pages (from-to)741-742
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberI
DOIs
Publication statusPublished - May 2004

Keywords

  • Micromagnetics
  • Nanocrystalline alloy
  • RAM

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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