Numerical study for ballistic switching of magnetization in single domain particle triggered by a ferromagnetic resonance within a relaxation time limit

Y. Nozaki, K. Matsuyama

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Magnetization reversal via successive ballistic rotation caused by an application of alternative field temporally varying within a relaxation time limit has been numerically investigated. As the Gilbert damping constant is smaller than 0.03, a pronounced beat appears in the temporal evolution of rotating angle of magnetization. The amplitude of the rotating angle at the first peak of the beat is larger than that achieved in the stable ferromagnetic resonance, so that the magnetization reversal occurred at the first peak of the beat. Consequently, subnanosecond switching of magnetization is realized even though a ferromagnetic resonant phenomenon is utilized to enhance the rotating angle of magnetization. In such a switching scheme, it is most important to optimize the frequency of the alternating field to ensure a practical margin of the operation current creating the switching field.

Original languageEnglish
Article number053911
JournalJournal of Applied Physics
Volume100
Issue number5
DOIs
Publication statusPublished - 2006 Sep 26
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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