Micromagnetic simulation of spin wave propagation in a ferromagnetic film with different thicknesses

• Hata Hiroshi

  Institute for Chemical Research, Kyoto University

• Moriyama Takahiro

  Institute for Chemical Research, Kyoto University

• Tanabe Kenji

  Institute for Chemical Research, Kyoto University Department of Physics, Graduate School of Science, Osaka University

• Kobayashi Kensuke

  Department of Physics, Graduate School of Science, Osaka University

• Matsumoto Ryo

  Department of Physics, Tokyo Institute of Technology

• Murakami Shuichi

  Department of Physics, Tokyo Institute of Technology

• Ohe Jun-ichiro

  Department of Physics, Toho University

• Chiba Daichi

  Department of Applied Physics, Faculty of Engineering, The University of Tokyo

• Ono Teruo

  Institute for Chemical Research, Kyoto University

Abstract

We have shown by micromagnetic simulation that the wavelength of the spin wave (SW) is modulated when the SW propagates across a step between two ferromagnetic films with different thicknesses. Since the wavelength of the SW depends on the film thickness, the thickness difference works as the different medium in Snell’s law. The wavelength modulation obtained by the simulation showed a good agreement with Snell’s law.

Journal

• Journal of the Magnetics Society of Japan

  Journal of the Magnetics Society of Japan 39 (4), 151-155, 2015

  The Magnetics Society of Japan

Keywords

• spin wave
• refraction
• Snell’s law
• micromagnetic simulation
• mumax3

Details

• CRID: 1390282680262385536
• NII Article ID: 130005087631
• NII Book ID: AA12297999
• DOI: 10.3379/msjmag.1506r004
• ISSN: 18822932
• ISSN: 18822924
• NDL BIB ID: 026595196
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026595196
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed