Effect of demagnetizaing field on frequency dispersoin of complex permeability

Sho Muroga, Masahiro Yamaguchi

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper describes that the ferromagnetic resonance (FMR) frequency shift can be calculated by an electromagnetic field simulator based on the Maxwell's equation although the relative permeability and the FMR frequency is defined by the Landau-Lifshitz-Gilbert (LLG) and the Kittel's equation. We evaluate the magnetic circuit model with the leakage magnetic flux path for considering the demagnetizing field generated in the magnetic film. As the result, we clarify that the effect of the demagnetizing field is considered as a reluctance of the leakage magnetic flux path in the magnetic circuit calculation, which is considered as the increase of anisotropy field in the Kittel's equation. Furthermore, we show that the simulated FMR frequency by the electromagnetic simulator agrees with the measured values.

本文言語English
ホスト出版物のタイトルEMC 2014/Tokyo - 2014 International Symposium on Electromagnetic CompatibiIity, Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ページ785-788
ページ数4
ISBN(電子版)9784885522871
出版ステータスPublished - 2014 12 23
イベント2014 International Symposium on Electromagnetic CompatibiIity, EMC 2014 - Tokyo, Japan
継続期間: 2014 5 122014 5 16

出版物シリーズ

名前IEEE International Symposium on Electromagnetic Compatibility
2014-December
ISSN(印刷版)1077-4076
ISSN(電子版)2158-1118

Other

Other2014 International Symposium on Electromagnetic CompatibiIity, EMC 2014
CountryJapan
CityTokyo
Period14/5/1214/5/16

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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