Extremely flat transmission band of forward volume spin wave using gold and yttrium iron garnet

Kei Shimada, Taichi Goto, Naoki Kanazawa, Hiroyuki Takagi, Yuichi Nakamura, Hironaga Uchida, Mitsuteru Inoue

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


An extremely flat transmission band for a forward volume spin wave (SW) propagating in an SW waveguide composed of yttrium iron garnet film and SW absorbers was obtained, using the finite integration technique. Three-dimensional analysis of the calculated results showed that the transmission ripples of the SWs propagating in the waveguide were caused by SW interference, especially that due to two standing waves originating from the waveguide edge-edge and the waveguide-antenna edge. To suppress these waves, SW absorbers composed of gold film were introduced and the resultant positions and shapes were investigated precisely. Hence, an extremely flat transmission band was obtained. The results of this study have potential application in the development of one- and two-dimensional magnonic crystals for integrated SW devices.

Original languageEnglish
Article number275001
JournalJournal of Physics D: Applied Physics
Issue number27
Publication statusPublished - 2017 Jun 15
Externally publishedYes


  • forward volume spin wave
  • magnetostatic wave
  • spin wave attenuator
  • transmission band
  • yttrium iron garnet

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films


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