論文

査読有り
2020年12月

Observation of the dispersion relations for quantized coherent spin waves excited by a microwave antenna

PHYSICAL REVIEW B
  • Yoichi Shiota
  • ,
  • Ryusuke Hisatomi
  • ,
  • Takahiro Moriyama
  • ,
  • Teruo Ono

102
21
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevB.102.214440
出版者・発行元
AMER PHYSICAL SOC

The propagation of coherent spin waves in permalloy microstrips was investigated using a heterodynemagneto-optical Kerr effect technique. The two-dimensional imaging reveals the mode interference with a high-order spin-wave mode along the microstrip width. The spin-wave dispersion relations across the microstrip width were deduced from fast Fourier transformations on the complex spin-wave amplitude of the one-dimensional scan, and multiple spin-wave modes were observed at the edges of the microstrips. These experimental results provide direct evidence for the quantization of spin-wave dispersion due to the finite width of the microstrips and enables us to evaluate the attenuation length for each quantized spin-wave mode.


リンク情報
DOI
https://doi.org/10.1103/PhysRevB.102.214440
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000603245500002&DestApp=WOS_CPL
ID情報
  • DOI : 10.1103/PhysRevB.102.214440
  • ISSN : 2469-9950
  • eISSN : 2469-9969
  • Web of Science ID : WOS:000603245500002

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