Numerical analysis of successive ballistic rotations of magnetization caused by an application of sinusoidal magnetic fields

Yukio Nozaki, Kimihide Matsuyama

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The magnetization reversal in a single-domain magnetic particle caused by a sinusoidal hard-axis field has been numerically studied for its application to magnetic random-access memories. The switching properties are analyzed as functions of the amplitude and frequency of the sinusoidal field. A sinusoidal field with a frequency higher than the magnetization relaxation frequency can induce successive ballistic trajectories of magnetization, which causes a large rotation surmounting the hard-axis direction. By choosing an appropriate frequency, it is found that the switching current amplitude can be reduced to one-fifth that of the static Stoner condition.

Original languageEnglish
Pages (from-to)L758-L760
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume45
Issue number29-32
DOIs
Publication statusPublished - Aug 11 2006

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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