Recent progress of high-frequency micromagnetics

Toshiro Sato, Yasushi Endo, Makoto Sonehara

Research output: Contribution to journalArticlepeer-review


This paper describes the recent progress of high-frequency micromagnetics in the ICT field. As a new magnetic thin film material for RF applications, CoFeSiO granular/SiO 2 insulator multilayer film is shown, which has a good high-frequency magnetic properties with 2.4 GHz ferromagnetic resonance and very narrow resonance linewidth. As the RF applications, two topics are shown, one is the CoFeB magnetic thin film directional coupler with broadband operation, the other is a negative permeability application to suppress the skin effect of signal line in the RF devices. Finally, the voltage-driven magneto-optic spatial light modulator with magneto-photonic crystal and PZT film is described.

Original languageEnglish
Pages (from-to)45-49
Number of pages5
JournalIEEJ Transactions on Fundamentals and Materials
Issue number1
Publication statusPublished - 2010 Mar 19


  • Directional coupler
  • High-frequency
  • ICT
  • Magnetic thin films
  • Micromagnetic devices
  • Negative permeability
  • Spatial light modulator

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Recent progress of high-frequency micromagnetics'. Together they form a unique fingerprint.

Cite this